./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/sum01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/sum01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3 --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 7bde49acbd83d331d6c1a7f9b5b50ee14f089f95 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 20:26:15,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 20:26:15,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 20:26:15,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 20:26:15,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 20:26:15,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 20:26:15,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 20:26:15,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 20:26:15,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 20:26:15,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 20:26:15,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 20:26:15,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 20:26:15,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 20:26:15,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 20:26:15,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 20:26:15,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 20:26:15,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 20:26:15,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 20:26:15,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 20:26:15,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 20:26:15,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 20:26:15,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 20:26:15,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 20:26:15,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 20:26:15,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 20:26:15,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 20:26:15,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 20:26:15,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 20:26:15,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 20:26:15,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 20:26:15,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 20:26:15,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 20:26:15,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 20:26:15,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 20:26:15,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 20:26:15,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 20:26:15,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 20:26:15,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 20:26:15,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 20:26:15,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 20:26:15,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 20:26:15,301 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-15 20:26:15,354 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 20:26:15,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 20:26:15,356 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 20:26:15,356 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 20:26:15,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 20:26:15,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 20:26:15,358 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 20:26:15,359 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 20:26:15,359 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 20:26:15,359 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 20:26:15,360 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 20:26:15,361 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 20:26:15,361 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 20:26:15,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 20:26:15,361 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 20:26:15,362 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 20:26:15,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 20:26:15,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 20:26:15,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 20:26:15,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 20:26:15,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 20:26:15,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 20:26:15,363 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 20:26:15,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 20:26:15,364 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 20:26:15,364 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 20:26:15,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 20:26:15,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 20:26:15,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 20:26:15,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 20:26:15,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 20:26:15,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 20:26:15,369 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 20:26:15,370 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_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bde49acbd83d331d6c1a7f9b5b50ee14f089f95 [2021-10-15 20:26:15,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 20:26:15,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 20:26:15,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 20:26:15,823 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 20:26:15,824 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 20:26:15,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/loops/sum01-1.i [2021-10-15 20:26:15,923 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/data/d3ad00b0c/dd68d721e72b449db0c8cc6142d98612/FLAG1464a4512 [2021-10-15 20:26:16,466 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 20:26:16,467 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/sv-benchmarks/c/loops/sum01-1.i [2021-10-15 20:26:16,477 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/data/d3ad00b0c/dd68d721e72b449db0c8cc6142d98612/FLAG1464a4512 [2021-10-15 20:26:16,832 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/data/d3ad00b0c/dd68d721e72b449db0c8cc6142d98612 [2021-10-15 20:26:16,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 20:26:16,837 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 20:26:16,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 20:26:16,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 20:26:16,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 20:26:16,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:26:16" (1/1) ... [2021-10-15 20:26:16,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53b3eb02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:26:16, skipping insertion in model container [2021-10-15 20:26:16,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:26:16" (1/1) ... [2021-10-15 20:26:16,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 20:26:16,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 20:26:17,155 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_3ee031ec-a9fe-4dab-85fc-292ae346098c/sv-benchmarks/c/loops/sum01-1.i[808,821] [2021-10-15 20:26:17,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:26:17,185 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 20:26:17,200 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_3ee031ec-a9fe-4dab-85fc-292ae346098c/sv-benchmarks/c/loops/sum01-1.i[808,821] [2021-10-15 20:26:17,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:26:17,223 INFO L208 MainTranslator]: Completed translation [2021-10-15 20:26:17,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:26:17 WrapperNode [2021-10-15 20:26:17,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 20:26:17,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 20:26:17,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 20:26:17,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 20:26:17,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:26:17" (1/1) ... [2021-10-15 20:26:17,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:26:17" (1/1) ... [2021-10-15 20:26:17,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 20:26:17,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 20:26:17,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 20:26:17,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 20:26:17,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:26:17" (1/1) ... [2021-10-15 20:26:17,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:26:17" (1/1) ... [2021-10-15 20:26:17,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:26:17" (1/1) ... [2021-10-15 20:26:17,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:26:17" (1/1) ... [2021-10-15 20:26:17,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:26:17" (1/1) ... [2021-10-15 20:26:17,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:26:17" (1/1) ... [2021-10-15 20:26:17,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:26:17" (1/1) ... [2021-10-15 20:26:17,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 20:26:17,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 20:26:17,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 20:26:17,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 20:26:17,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:26:17" (1/1) ... [2021-10-15 20:26:17,305 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:17,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:26:17,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:26:17,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 20:26:17,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 20:26:17,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 20:26:17,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 20:26:17,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 20:26:17,604 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 20:26:17,604 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-15 20:26:17,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:26:17 BoogieIcfgContainer [2021-10-15 20:26:17,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 20:26:17,607 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 20:26:17,608 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 20:26:17,615 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 20:26:17,616 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:26:17,616 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 08:26:16" (1/3) ... [2021-10-15 20:26:17,618 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6148c946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:26:17, skipping insertion in model container [2021-10-15 20:26:17,618 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:26:17,618 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:26:17" (2/3) ... [2021-10-15 20:26:17,619 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6148c946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:26:17, skipping insertion in model container [2021-10-15 20:26:17,619 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:26:17,619 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:26:17" (3/3) ... [2021-10-15 20:26:17,621 INFO L389 chiAutomizerObserver]: Analyzing ICFG sum01-1.i [2021-10-15 20:26:17,693 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 20:26:17,694 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 20:26:17,694 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 20:26:17,694 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 20:26:17,694 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 20:26:17,695 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 20:26:17,695 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 20:26:17,695 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 20:26:17,709 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) [2021-10-15 20:26:17,727 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-15 20:26:17,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:26:17,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:26:17,746 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-15 20:26:17,747 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-15 20:26:17,747 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 20:26:17,747 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) [2021-10-15 20:26:17,749 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-15 20:26:17,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:26:17,751 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:26:17,752 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-15 20:26:17,752 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-15 20:26:17,759 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 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 [2021-10-15 20:26:17,763 INFO L793 eck$LassoCheckResult]: Loop: 10#L24-3true assume !!(main_~i~0 <= main_~n~0); 7#L25true assume main_~i~0 < 10;main_~sn~0 := 2 + main_~sn~0; 6#L24-2true main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 10#L24-3true [2021-10-15 20:26:17,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:26:17,769 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-15 20:26:17,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:26:17,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128042947] [2021-10-15 20:26:17,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:26:17,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:26:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:26:17,910 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:26:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:26:17,957 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:26:17,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:26:17,961 INFO L82 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2021-10-15 20:26:17,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:26:17,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400740841] [2021-10-15 20:26:17,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:26:17,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:26:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:26:17,970 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:26:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:26:17,977 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:26:17,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:26:17,979 INFO L82 PathProgramCache]: Analyzing trace with hash 28698763, now seen corresponding path program 1 times [2021-10-15 20:26:17,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:26:17,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045250443] [2021-10-15 20:26:17,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:26:17,980 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:26:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:26:18,004 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:26:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:26:18,028 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:26:18,127 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:26:18,128 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:26:18,128 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:26:18,128 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:26:18,128 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 20:26:18,129 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:18,129 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:26:18,129 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:26:18,129 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01-1.i_Iteration1_Loop [2021-10-15 20:26:18,129 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:26:18,130 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:26:18,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:26:18,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:26:18,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:26:18,244 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:26:18,245 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 20:26:18,248 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:18,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:26:18,256 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:26:18,265 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:26:18,265 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:26:18,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 20:26:18,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-15 20:26:18,330 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:18,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:26:18,332 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:26:18,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 20:26:18,339 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:26:18,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 20:26:18,388 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:26:18,388 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] [2021-10-15 20:26:18,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-15 20:26:18,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:18,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:26:18,435 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:26:18,442 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:26:18,442 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:26:18,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 20:26:18,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-15 20:26:18,504 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:18,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:26:18,506 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:26:18,513 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 20:26:18,513 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:26:18,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 20:26:18,589 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 20:26:18,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-15 20:26:18,596 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:26:18,597 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:26:18,597 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:26:18,597 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:26:18,597 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:26:18,597 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:18,597 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:26:18,597 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:26:18,597 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01-1.i_Iteration1_Loop [2021-10-15 20:26:18,597 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:26:18,598 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:26:18,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:26:18,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:26:18,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:26:18,692 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:26:18,697 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:26:18,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:18,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:26:18,711 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:26:18,719 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 [2021-10-15 20:26:18,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:26:18,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:26:18,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:26:18,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:26:18,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:26:18,735 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:26:18,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:26:18,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-15 20:26:18,749 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:26:18,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-15 20:26:18,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:18,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:26:18,787 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:26:18,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-15 20:26:18,812 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 [2021-10-15 20:26:18,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:26:18,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:26:18,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:26:18,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:26:18,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:26:18,826 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:26:18,826 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:26:18,851 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 20:26:18,855 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-15 20:26:18,856 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-15 20:26:18,857 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:18,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:26:18,862 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:26:18,898 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 20:26:18,898 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-15 20:26:18,898 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 20:26:18,899 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 19 Supporting invariants [] [2021-10-15 20:26:18,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-15 20:26:18,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-15 20:26:18,941 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-15 20:26:18,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:26:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:26:18,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 20:26:18,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:26:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:26:19,029 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 20:26:19,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:26:19,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:26:19,114 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 [2021-10-15 20:26:19,116 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) [2021-10-15 20:26:19,177 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. [2021-10-15 20:26:19,178 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 [2021-10-15 20:26:19,180 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) [2021-10-15 20:26:19,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2021-10-15 20:26:19,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 2 letters. Loop has 3 letters. [2021-10-15 20:26:19,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:26:19,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-15 20:26:19,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:26:19,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 2 letters. Loop has 6 letters. [2021-10-15 20:26:19,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:26:19,186 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 44 transitions. [2021-10-15 20:26:19,190 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-15 20:26:19,194 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 12 states and 15 transitions. [2021-10-15 20:26:19,195 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-15 20:26:19,195 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-15 20:26:19,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2021-10-15 20:26:19,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-15 20:26:19,196 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-10-15 20:26:19,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2021-10-15 20:26:19,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-10-15 20:26:19,222 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) [2021-10-15 20:26:19,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-10-15 20:26:19,224 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-10-15 20:26:19,224 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-10-15 20:26:19,224 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 20:26:19,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2021-10-15 20:26:19,225 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-15 20:26:19,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:26:19,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:26:19,226 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-15 20:26:19,226 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-15 20:26:19,226 INFO L791 eck$LassoCheckResult]: Stem: 85#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(10); 86#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; 95#L24-3 assume !!(main_~i~0 <= main_~n~0); 91#L25 [2021-10-15 20:26:19,226 INFO L793 eck$LassoCheckResult]: Loop: 91#L25 assume !(main_~i~0 < 10); 87#L24-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 88#L24-3 assume !!(main_~i~0 <= main_~n~0); 91#L25 [2021-10-15 20:26:19,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:26:19,227 INFO L82 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2021-10-15 20:26:19,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:26:19,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876187003] [2021-10-15 20:26:19,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:26:19,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:26:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:26:19,258 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:26:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:26:19,279 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:26:19,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:26:19,296 INFO L82 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 1 times [2021-10-15 20:26:19,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:26:19,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955440125] [2021-10-15 20:26:19,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:26:19,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:26:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:26:19,301 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:26:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:26:19,305 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:26:19,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:26:19,306 INFO L82 PathProgramCache]: Analyzing trace with hash 889663585, now seen corresponding path program 1 times [2021-10-15 20:26:19,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:26:19,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776023497] [2021-10-15 20:26:19,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:26:19,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:26:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:26:19,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:26:19,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:26:19,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776023497] [2021-10-15 20:26:19,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776023497] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:26:19,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:26:19,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:26:19,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998453920] [2021-10-15 20:26:19,382 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:26:19,382 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:26:19,382 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:26:19,383 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:26:19,383 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 20:26:19,383 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:19,383 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:26:19,383 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:26:19,383 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01-1.i_Iteration2_Loop [2021-10-15 20:26:19,383 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:26:19,384 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:26:19,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:26:19,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:26:19,412 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:26:19,412 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 20:26:19,413 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:19,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:26:19,421 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:26:19,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-15 20:26:19,462 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:26:19,463 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:26:19,472 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:26:19,473 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: [] [2021-10-15 20:26:19,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-15 20:26:19,498 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:19,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:26:19,499 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:26:19,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-15 20:26:19,502 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:26:19,502 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:26:19,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-15 20:26:19,536 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:19,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:26:19,537 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:26:19,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-15 20:26:19,538 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 20:26:19,538 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:26:19,599 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 20:26:19,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-10-15 20:26:19,601 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:26:19,602 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:26:19,602 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:26:19,602 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:26:19,602 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:26:19,602 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:19,602 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:26:19,602 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:26:19,602 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01-1.i_Iteration2_Loop [2021-10-15 20:26:19,602 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:26:19,602 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:26:19,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:26:19,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:26:19,637 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:26:19,637 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:26:19,637 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:19,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:26:19,639 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:26:19,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-15 20:26:19,656 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 [2021-10-15 20:26:19,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:26:19,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:26:19,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:26:19,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:26:19,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:26:19,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:26:19,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:26:19,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:26:19,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-10-15 20:26:19,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:19,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:26:19,688 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:26:19,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-15 20:26:19,704 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 [2021-10-15 20:26:19,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:26:19,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:26:19,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:26:19,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:26:19,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:26:19,714 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:26:19,714 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:26:19,724 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 20:26:19,730 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-15 20:26:19,730 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-15 20:26:19,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:26:19,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:26:19,732 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:26:19,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-15 20:26:19,736 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 20:26:19,736 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-15 20:26:19,736 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 20:26:19,736 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 [] [2021-10-15 20:26:19,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-15 20:26:19,756 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-15 20:26:19,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:26:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:26:19,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 20:26:19,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:26:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:26:19,809 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 20:26:19,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:26:19,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:26:19,851 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 [2021-10-15 20:26:19,851 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 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) [2021-10-15 20:26:19,894 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 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 18 states and 22 transitions. Complement of second has 6 states. [2021-10-15 20:26:19,895 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 [2021-10-15 20:26:19,896 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) [2021-10-15 20:26:19,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2021-10-15 20:26:19,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-15 20:26:19,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:26:19,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-15 20:26:19,899 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:26:19,899 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-15 20:26:19,901 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:26:19,901 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2021-10-15 20:26:19,907 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 20:26:19,907 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2021-10-15 20:26:19,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 20:26:19,907 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 20:26:19,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 20:26:19,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:26:19,910 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:26:19,914 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:26:19,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:26:19,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 20:26:19,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 20:26:19,919 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-10-15 20:26:19,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:26:19,922 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-15 20:26:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-15 20:26:19,923 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-15 20:26:19,923 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 20:26:19,931 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-15 20:26:19,932 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 20:26:19,932 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 20:26:19,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 20:26:19,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:26:19,934 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:26:19,934 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:26:19,934 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:26:19,934 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-15 20:26:19,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-15 20:26:19,935 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 20:26:19,935 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-15 20:26:19,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 08:26:19 BoogieIcfgContainer [2021-10-15 20:26:19,941 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 20:26:19,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 20:26:19,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 20:26:19,942 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 20:26:19,943 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:26:17" (3/4) ... [2021-10-15 20:26:19,946 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 20:26:19,946 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 20:26:19,955 INFO L168 Benchmark]: Toolchain (without parser) took 3110.16 ms. Allocated memory is still 115.3 MB. Free memory was 81.2 MB in the beginning and 53.6 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. [2021-10-15 20:26:19,956 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 79.7 MB. Free memory was 58.5 MB in the beginning and 58.5 MB in the end (delta: 27.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:26:19,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.17 ms. Allocated memory is still 115.3 MB. Free memory was 81.2 MB in the beginning and 91.6 MB in the end (delta: -10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 20:26:19,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.24 ms. Allocated memory is still 115.3 MB. Free memory was 91.6 MB in the beginning and 90.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:26:19,959 INFO L168 Benchmark]: Boogie Preprocessor took 30.06 ms. Allocated memory is still 115.3 MB. Free memory was 90.1 MB in the beginning and 89.2 MB in the end (delta: 937.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:26:19,960 INFO L168 Benchmark]: RCFGBuilder took 313.14 ms. Allocated memory is still 115.3 MB. Free memory was 89.2 MB in the beginning and 80.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 20:26:19,963 INFO L168 Benchmark]: BuchiAutomizer took 2333.23 ms. Allocated memory is still 115.3 MB. Free memory was 80.1 MB in the beginning and 54.2 MB in the end (delta: 25.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-10-15 20:26:19,963 INFO L168 Benchmark]: Witness Printer took 4.51 ms. Allocated memory is still 115.3 MB. Free memory was 54.2 MB in the beginning and 53.6 MB in the end (delta: 597.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:26:19,971 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 79.7 MB. Free memory was 58.5 MB in the beginning and 58.5 MB in the end (delta: 27.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 386.17 ms. Allocated memory is still 115.3 MB. Free memory was 81.2 MB in the beginning and 91.6 MB in the end (delta: -10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.24 ms. Allocated memory is still 115.3 MB. Free memory was 91.6 MB in the beginning and 90.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.06 ms. Allocated memory is still 115.3 MB. Free memory was 90.1 MB in the beginning and 89.2 MB in the end (delta: 937.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 313.14 ms. Allocated memory is still 115.3 MB. Free memory was 89.2 MB in the beginning and 80.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2333.23 ms. Allocated memory is still 115.3 MB. Free memory was 80.1 MB in the beginning and 54.2 MB in the end (delta: 25.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.51 ms. Allocated memory is still 115.3 MB. Free memory was 54.2 MB in the beginning and 53.6 MB in the end (delta: 597.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 19 + -2 * i 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 2.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 11.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 14 SDslu, 10 SDs, 0 SdLazy, 23 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 30.7ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp86 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 50ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-15 20:26:20,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-15 20:26:20,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-15 20:26:20,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee031ec-a9fe-4dab-85fc-292ae346098c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...