./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL --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 64bit --witnessprinter.graph.data.programhash 086de8df2449d866ff611c83674a9697b7d09f2a2b1c5c922e46b0c1131a7d5c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:25:28,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:25:28,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:25:28,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:25:28,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:25:28,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:25:28,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:25:28,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:25:28,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:25:28,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:25:28,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:25:28,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:25:28,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:25:28,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:25:28,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:25:28,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:25:28,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:25:28,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:25:28,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:25:28,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:25:28,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:25:28,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:25:28,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:25:28,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:25:28,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:25:28,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:25:28,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:25:28,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:25:28,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:25:28,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:25:28,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:25:28,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:25:28,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:25:28,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:25:28,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:25:28,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:25:28,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:25:28,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:25:28,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:25:28,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:25:28,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:25:28,346 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-19 04:25:28,392 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:25:28,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:25:28,393 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:25:28,393 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:25:28,395 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:25:28,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:25:28,395 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:25:28,396 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-19 04:25:28,396 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-19 04:25:28,396 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-19 04:25:28,396 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-19 04:25:28,397 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-19 04:25:28,397 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-19 04:25:28,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:25:28,397 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:25:28,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:25:28,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:25:28,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-19 04:25:28,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-19 04:25:28,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-19 04:25:28,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:25:28,399 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-19 04:25:28,399 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:25:28,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-19 04:25:28,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:25:28,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:25:28,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:25:28,401 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:25:28,401 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:25:28,402 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-19 04:25:28,403 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_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 086de8df2449d866ff611c83674a9697b7d09f2a2b1c5c922e46b0c1131a7d5c [2021-11-19 04:25:28,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:25:28,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:25:28,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:25:28,777 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:25:28,778 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:25:28,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2021-11-19 04:25:28,885 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/data/b40c6e6e2/0ee0ff1e47544d78af2d622ce4a1d913/FLAGb89af2e0a [2021-11-19 04:25:29,465 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:25:29,466 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2021-11-19 04:25:29,478 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/data/b40c6e6e2/0ee0ff1e47544d78af2d622ce4a1d913/FLAGb89af2e0a [2021-11-19 04:25:29,812 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/data/b40c6e6e2/0ee0ff1e47544d78af2d622ce4a1d913 [2021-11-19 04:25:29,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:25:29,819 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:25:29,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:25:29,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:25:29,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:25:29,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:25:29" (1/1) ... [2021-11-19 04:25:29,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79828ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:25:29, skipping insertion in model container [2021-11-19 04:25:29,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:25:29" (1/1) ... [2021-11-19 04:25:29,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:25:29,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:25:30,091 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:25:30,095 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:25:30,115 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:25:30,129 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:25:30,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:25:30 WrapperNode [2021-11-19 04:25:30,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:25:30,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:25:30,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:25:30,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:25:30,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:25:30" (1/1) ... [2021-11-19 04:25:30,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:25:30" (1/1) ... [2021-11-19 04:25:30,165 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2021-11-19 04:25:30,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:25:30,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:25:30,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:25:30,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:25:30,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:25:30" (1/1) ... [2021-11-19 04:25:30,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:25:30" (1/1) ... [2021-11-19 04:25:30,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:25:30" (1/1) ... [2021-11-19 04:25:30,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:25:30" (1/1) ... [2021-11-19 04:25:30,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:25:30" (1/1) ... [2021-11-19 04:25:30,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:25:30" (1/1) ... [2021-11-19 04:25:30,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:25:30" (1/1) ... [2021-11-19 04:25:30,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:25:30,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:25:30,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:25:30,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:25:30,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:25:30" (1/1) ... [2021-11-19 04:25:30,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:30,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:30,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:30,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-19 04:25:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:25:30,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:25:30,358 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:25:30,360 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:25:30,462 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:25:30,471 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:25:30,472 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 04:25:30,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:25:30 BoogieIcfgContainer [2021-11-19 04:25:30,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:25:30,478 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-19 04:25:30,479 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-19 04:25:30,483 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-19 04:25:30,484 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:25:30,484 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 04:25:29" (1/3) ... [2021-11-19 04:25:30,486 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4abe80cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:25:30, skipping insertion in model container [2021-11-19 04:25:30,486 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:25:30,486 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:25:30" (2/3) ... [2021-11-19 04:25:30,487 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4abe80cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:25:30, skipping insertion in model container [2021-11-19 04:25:30,487 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:25:30,487 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:25:30" (3/3) ... [2021-11-19 04:25:30,490 INFO L388 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2021-11-19 04:25:30,563 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-19 04:25:30,563 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-19 04:25:30,563 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-19 04:25:30,564 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-19 04:25:30,564 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-19 04:25:30,564 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-19 04:25:30,564 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-19 04:25:30,564 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-19 04:25:30,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:25:30,611 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-19 04:25:30,612 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:25:30,612 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:25:30,619 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-19 04:25:30,620 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-19 04:25:30,620 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-19 04:25:30,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:25:30,622 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-19 04:25:30,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:25:30,623 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:25:30,623 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-19 04:25:30,624 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-19 04:25:30,632 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~m~0#1, main_~n~0#1, main_~v1~0#1, main_~v2~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~v1~0#1;havoc main_~v2~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L17true assume main_~n~0#1 >= 0 && main_~m~0#1 > 0;main_~v1~0#1 := main_~n~0#1;main_~v2~0#1 := 0; 8#L21-2true [2021-11-19 04:25:30,633 INFO L793 eck$LassoCheckResult]: Loop: 8#L21-2true assume !!(main_~v1~0#1 > 0); 6#L21true assume main_~v2~0#1 < main_~m~0#1;main_~v2~0#1 := 1 + main_~v2~0#1;main_~v1~0#1 := main_~v1~0#1 - 1; 8#L21-2true [2021-11-19 04:25:30,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:25:30,644 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-11-19 04:25:30,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:25:30,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582985592] [2021-11-19 04:25:30,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:25:30,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:25:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:25:30,773 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:25:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:25:30,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:25:30,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:25:30,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2021-11-19 04:25:30,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:25:30,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126258492] [2021-11-19 04:25:30,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:25:30,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:25:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:25:30,850 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:25:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:25:30,864 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:25:30,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:25:30,866 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2021-11-19 04:25:30,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:25:30,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745374641] [2021-11-19 04:25:30,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:25:30,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:25:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:25:30,897 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:25:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:25:30,920 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:25:31,060 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:25:31,061 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:25:31,061 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:25:31,061 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:25:31,062 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:25:31,062 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:31,062 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:25:31,062 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:25:31,062 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration1_Loop [2021-11-19 04:25:31,063 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:25:31,063 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:25:31,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:31,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:31,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:31,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:31,233 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:25:31,234 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:25:31,236 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:31,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:31,251 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:31,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-19 04:25:31,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:25:31,254 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:25:31,285 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:25:31,285 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:25:31,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:25:31,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:31,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:31,330 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:31,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:25:31,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:25:31,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-19 04:25:31,362 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:25:31,362 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:25:31,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:25:31,401 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:31,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:31,403 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:31,414 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:25:31,414 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:25:31,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-19 04:25:31,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-19 04:25:31,489 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:31,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:31,494 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:31,501 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:25:31,501 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:25:31,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-19 04:25:31,568 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-19 04:25:31,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-19 04:25:31,577 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:25:31,577 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:25:31,577 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:25:31,577 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:25:31,577 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:25:31,577 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:31,578 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:25:31,578 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:25:31,578 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration1_Loop [2021-11-19 04:25:31,578 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:25:31,578 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:25:31,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:31,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:31,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:31,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:31,682 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:25:31,686 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:25:31,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:31,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:31,694 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:31,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:25:31,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:25:31,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:25:31,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:25:31,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:25:31,723 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:25:31,725 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:25:31,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-19 04:25:31,748 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:25:31,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-19 04:25:31,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:31,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:31,791 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:31,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:25:31,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:25:31,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:25:31,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:25:31,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:25:31,816 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:25:31,816 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:25:31,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-19 04:25:31,833 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:25:31,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-19 04:25:31,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:31,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:31,876 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:31,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-19 04:25:31,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:25:31,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:25:31,896 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:25:31,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:25:31,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:25:31,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:25:31,900 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:25:31,900 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:25:31,929 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:25:31,934 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-19 04:25:31,935 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-19 04:25:31,937 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:31,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:31,942 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:31,979 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:25:31,979 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-19 04:25:31,979 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:25:31,980 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v1~0#1) = 1*ULTIMATE.start_main_~v1~0#1 Supporting invariants [] [2021-11-19 04:25:31,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-19 04:25:32,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-19 04:25:32,025 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-19 04:25:32,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:25:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:25:32,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 04:25:32,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:25:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:25:32,099 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 04:25:32,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:25:32,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:25:32,196 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-19 04:25:32,198 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:25:32,246 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 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) Result 26 states and 34 transitions. Complement of second has 7 states. [2021-11-19 04:25:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-19 04:25:32,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:25:32,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-11-19 04:25:32,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-19 04:25:32,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:25:32,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-19 04:25:32,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:25:32,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 3 letters. Loop has 4 letters. [2021-11-19 04:25:32,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:25:32,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 34 transitions. [2021-11-19 04:25:32,261 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-19 04:25:32,265 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 10 states and 13 transitions. [2021-11-19 04:25:32,266 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-19 04:25:32,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-11-19 04:25:32,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-11-19 04:25:32,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:25:32,267 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-11-19 04:25:32,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-11-19 04:25:32,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2021-11-19 04:25:32,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:25:32,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2021-11-19 04:25:32,295 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-11-19 04:25:32,296 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-11-19 04:25:32,296 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-19 04:25:32,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2021-11-19 04:25:32,297 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-19 04:25:32,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:25:32,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:25:32,297 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-19 04:25:32,297 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-19 04:25:32,298 INFO L791 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 80#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~m~0#1, main_~n~0#1, main_~v1~0#1, main_~v2~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~v1~0#1;havoc main_~v2~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 77#L17 assume main_~n~0#1 >= 0 && main_~m~0#1 > 0;main_~v1~0#1 := main_~n~0#1;main_~v2~0#1 := 0; 78#L21-2 assume !!(main_~v1~0#1 > 0); 81#L21 [2021-11-19 04:25:32,298 INFO L793 eck$LassoCheckResult]: Loop: 81#L21 assume !(main_~v2~0#1 < main_~m~0#1);main_~v2~0#1 := 0; 82#L21-2 assume !!(main_~v1~0#1 > 0); 81#L21 [2021-11-19 04:25:32,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:25:32,299 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2021-11-19 04:25:32,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:25:32,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3727113] [2021-11-19 04:25:32,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:25:32,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:25:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:25:32,305 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:25:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:25:32,310 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:25:32,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:25:32,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 1 times [2021-11-19 04:25:32,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:25:32,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562681531] [2021-11-19 04:25:32,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:25:32,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:25:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:25:32,317 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:25:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:25:32,320 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:25:32,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:25:32,321 INFO L85 PathProgramCache]: Analyzing trace with hash 889513735, now seen corresponding path program 1 times [2021-11-19 04:25:32,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:25:32,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769138461] [2021-11-19 04:25:32,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:25:32,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:25:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:25:32,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:25:32,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:25:32,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769138461] [2021-11-19 04:25:32,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769138461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:25:32,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:25:32,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:25:32,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128769278] [2021-11-19 04:25:32,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:25:32,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:25:32,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:25:32,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:25:32,393 INFO L87 Difference]: Start difference. First operand 9 states and 12 transitions. cyclomatic complexity: 5 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) [2021-11-19 04:25:32,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:25:32,403 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-11-19 04:25:32,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:25:32,404 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-11-19 04:25:32,405 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-19 04:25:32,405 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 12 transitions. [2021-11-19 04:25:32,406 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-19 04:25:32,406 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-19 04:25:32,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2021-11-19 04:25:32,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:25:32,406 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-11-19 04:25:32,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2021-11-19 04:25:32,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-19 04:25:32,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:25:32,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-11-19 04:25:32,408 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-11-19 04:25:32,408 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-11-19 04:25:32,408 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-19 04:25:32,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2021-11-19 04:25:32,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-19 04:25:32,409 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:25:32,409 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:25:32,410 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2021-11-19 04:25:32,410 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-19 04:25:32,410 INFO L791 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 108#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~m~0#1, main_~n~0#1, main_~v1~0#1, main_~v2~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~v1~0#1;havoc main_~v2~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 105#L17 assume main_~n~0#1 >= 0 && main_~m~0#1 > 0;main_~v1~0#1 := main_~n~0#1;main_~v2~0#1 := 0; 106#L21-2 assume !!(main_~v1~0#1 > 0); 111#L21 assume main_~v2~0#1 < main_~m~0#1;main_~v2~0#1 := 1 + main_~v2~0#1;main_~v1~0#1 := main_~v1~0#1 - 1; 112#L21-2 assume !!(main_~v1~0#1 > 0); 109#L21 [2021-11-19 04:25:32,410 INFO L793 eck$LassoCheckResult]: Loop: 109#L21 assume !(main_~v2~0#1 < main_~m~0#1);main_~v2~0#1 := 0; 110#L21-2 assume !!(main_~v1~0#1 > 0); 109#L21 [2021-11-19 04:25:32,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:25:32,411 INFO L85 PathProgramCache]: Analyzing trace with hash 889513673, now seen corresponding path program 2 times [2021-11-19 04:25:32,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:25:32,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892822081] [2021-11-19 04:25:32,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:25:32,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:25:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:25:32,418 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:25:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:25:32,425 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:25:32,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:25:32,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 2 times [2021-11-19 04:25:32,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:25:32,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609372000] [2021-11-19 04:25:32,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:25:32,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:25:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:25:32,431 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:25:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:25:32,434 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:25:32,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:25:32,434 INFO L85 PathProgramCache]: Analyzing trace with hash 124148452, now seen corresponding path program 1 times [2021-11-19 04:25:32,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:25:32,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441452037] [2021-11-19 04:25:32,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:25:32,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:25:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:25:32,442 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:25:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:25:32,449 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:25:32,530 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:25:32,530 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:25:32,530 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:25:32,531 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:25:32,531 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:25:32,531 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:32,531 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:25:32,531 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:25:32,531 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration3_Lasso [2021-11-19 04:25:32,531 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:25:32,532 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:25:32,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:32,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:32,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:32,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:32,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:32,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:32,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:32,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-19 04:25:32,736 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:25:32,736 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:25:32,736 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:32,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:32,738 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:32,751 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:25:32,751 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:25:32,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-19 04:25:32,782 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:25:32,782 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:25:32,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-19 04:25:32,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:32,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:32,827 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:32,838 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:25:32,838 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:25:32,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-19 04:25:32,862 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:25:32,862 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:25:32,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-19 04:25:32,906 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:32,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:32,908 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:32,916 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:25:32,916 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:25:32,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-19 04:25:32,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-19 04:25:32,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:32,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:32,998 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:33,007 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:25:33,007 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:25:33,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-19 04:25:33,162 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-19 04:25:33,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-19 04:25:33,174 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:25:33,174 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:25:33,174 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:25:33,174 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:25:33,174 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:25:33,175 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:33,175 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:25:33,175 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:25:33,175 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration3_Lasso [2021-11-19 04:25:33,175 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:25:33,175 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:25:33,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:33,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:33,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:33,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:33,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:33,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:33,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:25:33,321 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:25:33,322 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:25:33,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:33,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:33,326 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:33,331 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:25:33,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:25:33,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:25:33,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:25:33,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:25:33,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-19 04:25:33,349 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:25:33,352 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:25:33,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:25:33,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-19 04:25:33,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:33,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:33,410 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:33,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-19 04:25:33,417 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:25:33,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:25:33,426 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:25:33,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:25:33,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:25:33,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:25:33,428 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:25:33,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:25:33,442 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:25:33,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-19 04:25:33,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:33,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:33,469 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:33,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-19 04:25:33,475 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:25:33,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:25:33,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:25:33,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:25:33,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:25:33,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:25:33,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:25:33,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:25:33,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:25:33,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-19 04:25:33,537 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:33,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:33,546 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:33,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-19 04:25:33,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:25:33,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:25:33,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:25:33,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:25:33,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:25:33,571 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:25:33,571 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:25:33,589 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:25:33,606 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-11-19 04:25:33,606 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-11-19 04:25:33,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:25:33,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:25:33,609 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:25:33,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-19 04:25:33,618 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:25:33,648 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-11-19 04:25:33,648 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:25:33,648 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v2~0#1, ULTIMATE.start_main_~m~0#1) = 2*ULTIMATE.start_main_~v2~0#1 - 2*ULTIMATE.start_main_~m~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~m~0#1 - 1 >= 0] [2021-11-19 04:25:33,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-19 04:25:33,692 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-11-19 04:25:33,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:25:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:25:33,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:25:33,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:25:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:25:33,814 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 04:25:33,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:25:33,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:25:33,865 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-11-19 04:25:33,866 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:25:33,900 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 10 states and 12 transitions. Complement of second has 4 states. [2021-11-19 04:25:33,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2021-11-19 04:25:33,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:25:33,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-11-19 04:25:33,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-19 04:25:33,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:25:33,904 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-19 04:25:33,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:25:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:25:33,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:25:33,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:25:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:25:33,997 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 04:25:33,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:25:34,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:25:34,043 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2021-11-19 04:25:34,043 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:25:34,072 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 10 states and 12 transitions. Complement of second has 4 states. [2021-11-19 04:25:34,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2021-11-19 04:25:34,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:25:34,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-11-19 04:25:34,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-19 04:25:34,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:25:34,075 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-19 04:25:34,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:25:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:25:34,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:25:34,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:25:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:25:34,171 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 04:25:34,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:25:34,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:25:34,211 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-11-19 04:25:34,211 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:25:34,241 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 14 states and 17 transitions. Complement of second has 5 states. [2021-11-19 04:25:34,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-19 04:25:34,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:25:34,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-11-19 04:25:34,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-19 04:25:34,243 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:25:34,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2021-11-19 04:25:34,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:25:34,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2021-11-19 04:25:34,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:25:34,245 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2021-11-19 04:25:34,246 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-19 04:25:34,246 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2021-11-19 04:25:34,247 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-19 04:25:34,247 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-19 04:25:34,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-19 04:25:34,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:25:34,247 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:25:34,247 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:25:34,248 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:25:34,248 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-19 04:25:34,248 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-19 04:25:34,248 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-19 04:25:34,248 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-19 04:25:34,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 04:25:34 BoogieIcfgContainer [2021-11-19 04:25:34,257 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-19 04:25:34,257 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:25:34,257 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:25:34,258 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:25:34,258 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:25:30" (3/4) ... [2021-11-19 04:25:34,262 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 04:25:34,262 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:25:34,263 INFO L158 Benchmark]: Toolchain (without parser) took 4443.95ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 64.1MB in the beginning and 52.9MB in the end (delta: 11.2MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2021-11-19 04:25:34,264 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 96.5MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:25:34,264 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.08ms. Allocated memory is still 96.5MB. Free memory was 63.9MB in the beginning and 73.9MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 04:25:34,265 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.54ms. Allocated memory is still 96.5MB. Free memory was 73.9MB in the beginning and 72.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:25:34,266 INFO L158 Benchmark]: Boogie Preprocessor took 26.64ms. Allocated memory is still 96.5MB. Free memory was 72.7MB in the beginning and 71.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:25:34,266 INFO L158 Benchmark]: RCFGBuilder took 280.59ms. Allocated memory is still 96.5MB. Free memory was 71.5MB in the beginning and 63.9MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 04:25:34,267 INFO L158 Benchmark]: BuchiAutomizer took 3778.23ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 63.7MB in the beginning and 53.9MB in the end (delta: 9.8MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2021-11-19 04:25:34,267 INFO L158 Benchmark]: Witness Printer took 4.79ms. Allocated memory is still 127.9MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:25:34,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 96.5MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.08ms. Allocated memory is still 96.5MB. Free memory was 63.9MB in the beginning and 73.9MB in the end (delta: -10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.54ms. Allocated memory is still 96.5MB. Free memory was 73.9MB in the beginning and 72.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.64ms. Allocated memory is still 96.5MB. Free memory was 72.7MB in the beginning and 71.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 280.59ms. Allocated memory is still 96.5MB. Free memory was 71.5MB in the beginning and 63.9MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 3778.23ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 63.7MB in the beginning and 53.9MB in the end (delta: 9.8MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. * Witness Printer took 4.79ms. Allocated memory is still 127.9MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 1 deterministic, 1 nondeterministic). One deterministic module has affine ranking function v1 and consists of 5 locations. One nondeterministic module has affine ranking function 2 * v2 + -2 * m + 1 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 3.7s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 29 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf100 lsp35 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf92 smp100 dnf100 smp100 tf106 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 60ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-19 04:25:34,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-19 04:25:34,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf9ac96-bcae-4056-80ff-71862b1f602f/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE