./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/MultCommutative-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/MultCommutative-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bbc43fe9834b77811d120f68e3a868f414cdd105 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:31:39,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:31:39,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:31:39,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:31:39,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:31:39,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:31:39,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:31:39,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:31:39,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:31:39,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:31:39,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:31:39,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:31:39,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:31:39,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:31:39,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:31:39,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:31:39,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:31:39,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:31:39,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:31:39,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:31:39,546 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:31:39,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:31:39,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:31:39,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:31:39,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:31:39,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:31:39,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:31:39,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:31:39,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:31:39,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:31:39,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:31:39,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:31:39,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:31:39,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:31:39,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:31:39,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:31:39,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:31:39,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:31:39,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:31:39,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:31:39,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:31:39,581 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-11 00:31:39,630 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:31:39,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:31:39,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:31:39,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:31:39,639 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:31:39,639 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:31:39,640 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:31:39,640 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:31:39,640 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:31:39,640 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:31:39,641 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:31:39,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:31:39,642 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:31:39,642 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:31:39,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:31:39,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:31:39,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:31:39,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:31:39,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:31:39,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:31:39,644 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:31:39,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:31:39,644 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:31:39,644 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:31:39,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:31:39,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:31:39,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:31:39,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:31:39,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:31:39,647 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:31:39,648 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:31:39,648 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_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbc43fe9834b77811d120f68e3a868f414cdd105 [2021-10-11 00:31:39,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:31:39,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:31:39,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:31:40,000 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:31:40,001 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:31:40,002 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/recursive/MultCommutative-2.c [2021-10-11 00:31:40,070 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/data/5f3279be9/f326a5f465f240e4815690e14d4aa38a/FLAGa2ec7050a [2021-10-11 00:31:40,606 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:31:40,606 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/sv-benchmarks/c/recursive/MultCommutative-2.c [2021-10-11 00:31:40,613 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/data/5f3279be9/f326a5f465f240e4815690e14d4aa38a/FLAGa2ec7050a [2021-10-11 00:31:40,956 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/data/5f3279be9/f326a5f465f240e4815690e14d4aa38a [2021-10-11 00:31:40,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:31:40,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:31:40,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:31:40,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:31:40,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:31:40,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:31:40" (1/1) ... [2021-10-11 00:31:40,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b1e813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:40, skipping insertion in model container [2021-10-11 00:31:40,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:31:40" (1/1) ... [2021-10-11 00:31:40,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:31:40,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:31:41,165 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/sv-benchmarks/c/recursive/MultCommutative-2.c[970,983] [2021-10-11 00:31:41,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:31:41,175 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:31:41,193 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/sv-benchmarks/c/recursive/MultCommutative-2.c[970,983] [2021-10-11 00:31:41,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:31:41,209 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:31:41,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:41 WrapperNode [2021-10-11 00:31:41,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:31:41,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:31:41,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:31:41,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:31:41,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:41" (1/1) ... [2021-10-11 00:31:41,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:41" (1/1) ... [2021-10-11 00:31:41,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:31:41,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:31:41,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:31:41,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:31:41,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:41" (1/1) ... [2021-10-11 00:31:41,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:41" (1/1) ... [2021-10-11 00:31:41,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:41" (1/1) ... [2021-10-11 00:31:41,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:41" (1/1) ... [2021-10-11 00:31:41,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:41" (1/1) ... [2021-10-11 00:31:41,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:41" (1/1) ... [2021-10-11 00:31:41,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:41" (1/1) ... [2021-10-11 00:31:41,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:31:41,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:31:41,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:31:41,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:31:41,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:41" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:41,366 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2021-10-11 00:31:41,366 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2021-10-11 00:31:41,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:31:41,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:31:41,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:31:41,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:31:41,634 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:31:41,634 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 00:31:41,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:41 BoogieIcfgContainer [2021-10-11 00:31:41,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:31:41,638 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:31:41,638 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:31:41,642 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:31:41,643 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:31:41,643 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:31:40" (1/3) ... [2021-10-11 00:31:41,658 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bcb07e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:31:41, skipping insertion in model container [2021-10-11 00:31:41,658 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:31:41,658 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:41" (2/3) ... [2021-10-11 00:31:41,659 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bcb07e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:31:41, skipping insertion in model container [2021-10-11 00:31:41,659 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:31:41,659 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:41" (3/3) ... [2021-10-11 00:31:41,660 INFO L389 chiAutomizerObserver]: Analyzing ICFG MultCommutative-2.c [2021-10-11 00:31:41,737 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:31:41,737 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:31:41,737 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:31:41,737 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:31:41,738 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:31:41,738 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:31:41,738 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:31:41,738 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:31:41,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2021-10-11 00:31:41,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-11 00:31:41,779 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:31:41,779 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:31:41,787 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-11 00:31:41,787 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-11 00:31:41,787 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:31:41,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2021-10-11 00:31:41,790 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-11 00:31:41,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:31:41,791 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:31:41,792 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-11 00:31:41,792 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-11 00:31:41,800 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(20);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 11#L-1true havoc main_#res;havoc main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet9;havoc main_#t~nondet9; 7#L29true assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 14#L33true assume !(main_~n~0 < 0 || main_~n~0 > 46340); 23#L36true call main_#t~ret11 := mult(main_~m~0, main_~n~0);< 3#multENTRYtrue [2021-10-11 00:31:41,800 INFO L796 eck$LassoCheckResult]: Loop: 3#multENTRYtrue ~n := #in~n;~m := #in~m; 20#L18true assume ~m < 0; 16#L19true call #t~ret7 := mult(~n, -~m);< 3#multENTRYtrue [2021-10-11 00:31:41,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:41,807 INFO L82 PathProgramCache]: Analyzing trace with hash 42056133, now seen corresponding path program 1 times [2021-10-11 00:31:41,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:41,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959171087] [2021-10-11 00:31:41,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:41,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:41,941 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:41,965 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:41,999 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:42,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:42,005 INFO L82 PathProgramCache]: Analyzing trace with hash 29925, now seen corresponding path program 1 times [2021-10-11 00:31:42,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:42,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48886454] [2021-10-11 00:31:42,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:42,031 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:42,038 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:42,043 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:42,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:42,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1236192095, now seen corresponding path program 1 times [2021-10-11 00:31:42,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:42,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441656639] [2021-10-11 00:31:42,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:42,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:42,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441656639] [2021-10-11 00:31:42,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:42,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:31:42,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683205624] [2021-10-11 00:31:42,337 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:31:42,338 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:31:42,338 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:31:42,338 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:31:42,338 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:31:42,339 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:42,339 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:31:42,339 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:31:42,340 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration1_Loop [2021-10-11 00:31:42,340 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:31:42,340 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:31:42,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:42,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:42,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:42,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:42,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:42,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:42,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:42,497 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:31:42,498 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:42,596 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:42,596 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:42,611 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:42,611 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:42,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:42,656 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:42,672 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:42,672 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:42,714 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:42,714 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:31:42,740 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:42,741 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:42,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:42,775 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:42,800 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:42,800 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:42,826 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:42,826 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:31:42,844 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:42,844 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret8=0} Honda state: {mult_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:42,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:42,892 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:42,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:31:42,940 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:31:43,014 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:31:43,015 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:31:43,015 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:31:43,016 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:31:43,016 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:31:43,016 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:31:43,016 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:43,016 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:31:43,016 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:31:43,016 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration1_Loop [2021-10-11 00:31:43,016 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:31:43,016 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:31:43,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:43,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:43,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:43,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:43,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:43,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:43,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:43,108 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:31:43,113 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:43,124 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:43,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:43,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:43,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:43,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:43,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:43,130 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:43,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:43,140 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:43,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:43,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:43,186 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:43,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:43,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:43,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:43,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:43,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:43,211 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:43,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:43,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:43,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:43,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:43,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:43,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:43,254 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:43,254 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:43,264 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:43,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:43,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:43,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:43,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:43,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:43,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:43,297 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:43,297 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:31:43,306 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:43,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:43,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:43,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:43,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:43,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:43,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:43,331 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:43,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:31:43,353 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:43,404 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:43,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:43,406 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:43,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:43,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:43,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:43,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:43,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:43,443 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:43,532 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:43,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:43,534 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:43,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:43,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:43,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:43,536 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:43,536 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:31:43,555 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:31:43,565 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-11 00:31:43,566 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:43,596 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:31:43,596 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:31:43,596 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:31:43,597 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:43,629 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:31:43,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:43,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:31:43,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:43,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 00:31:43,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:43,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:43,791 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-11 00:31:43,792 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 4 states. [2021-10-11 00:31:43,901 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states.. Second operand 4 states. Result 51 states and 66 transitions. Complement of second has 12 states. [2021-10-11 00:31:43,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-11 00:31:43,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-10-11 00:31:43,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-10-11 00:31:43,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-11 00:31:43,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:43,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 3 letters. [2021-10-11 00:31:43,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:43,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 6 letters. [2021-10-11 00:31:43,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:43,909 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 66 transitions. [2021-10-11 00:31:43,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-11 00:31:43,921 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 32 states and 45 transitions. [2021-10-11 00:31:43,923 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-10-11 00:31:43,923 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-10-11 00:31:43,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 45 transitions. [2021-10-11 00:31:43,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:31:43,924 INFO L692 BuchiCegarLoop]: Abstraction has 32 states and 45 transitions. [2021-10-11 00:31:43,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 45 transitions. [2021-10-11 00:31:43,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2021-10-11 00:31:43,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-10-11 00:31:43,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2021-10-11 00:31:43,977 INFO L715 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2021-10-11 00:31:43,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:43,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:31:43,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:31:43,983 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. Second operand 5 states. [2021-10-11 00:31:44,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:44,040 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2021-10-11 00:31:44,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:31:44,041 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2021-10-11 00:31:44,043 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-11 00:31:44,045 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 34 transitions. [2021-10-11 00:31:44,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-10-11 00:31:44,045 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-10-11 00:31:44,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2021-10-11 00:31:44,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:31:44,046 INFO L692 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2021-10-11 00:31:44,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2021-10-11 00:31:44,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2021-10-11 00:31:44,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 00:31:44,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2021-10-11 00:31:44,051 INFO L715 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-10-11 00:31:44,051 INFO L595 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-10-11 00:31:44,052 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:31:44,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2021-10-11 00:31:44,053 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-11 00:31:44,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:31:44,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:31:44,054 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:31:44,054 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-11 00:31:44,054 INFO L794 eck$LassoCheckResult]: Stem: 206#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(20);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 205#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet9;havoc main_#t~nondet9; 198#L29 assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 199#L33 assume !(main_~n~0 < 0 || main_~n~0 > 46340); 194#L36 call main_#t~ret11 := mult(main_~m~0, main_~n~0);< 193#multENTRY ~n := #in~n;~m := #in~m; 195#L18 assume !(~m < 0); 210#L21 assume !(0 == ~m); 200#L24 call #t~ret8 := mult(~n, ~m - 1);< 197#multENTRY [2021-10-11 00:31:44,054 INFO L796 eck$LassoCheckResult]: Loop: 197#multENTRY ~n := #in~n;~m := #in~m; 214#L18 assume ~m < 0; 203#L19 call #t~ret7 := mult(~n, -~m);< 197#multENTRY [2021-10-11 00:31:44,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:44,055 INFO L82 PathProgramCache]: Analyzing trace with hash 332752684, now seen corresponding path program 1 times [2021-10-11 00:31:44,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:44,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066164172] [2021-10-11 00:31:44,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:44,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:44,089 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:44,095 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:44,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:44,096 INFO L82 PathProgramCache]: Analyzing trace with hash 29925, now seen corresponding path program 2 times [2021-10-11 00:31:44,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:44,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083410793] [2021-10-11 00:31:44,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:44,101 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:44,104 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:44,106 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:44,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:44,106 INFO L82 PathProgramCache]: Analyzing trace with hash 250690010, now seen corresponding path program 1 times [2021-10-11 00:31:44,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:44,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892193535] [2021-10-11 00:31:44,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:44,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:44,164 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:44,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892193535] [2021-10-11 00:31:44,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:44,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:31:44,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966890842] [2021-10-11 00:31:44,211 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:31:44,211 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:31:44,211 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:31:44,211 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:31:44,211 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:31:44,212 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:44,212 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:31:44,212 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:31:44,212 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration2_Loop [2021-10-11 00:31:44,212 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:31:44,212 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:31:44,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:44,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:44,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:44,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:44,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:44,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:44,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:44,299 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:31:44,300 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:44,313 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:44,314 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:44,336 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:44,337 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:44,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:44,384 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:44,408 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:44,408 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:44,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:44,448 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:44,457 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:44,457 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:44,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:44,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:31:44,525 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:44,525 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:44,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:44,566 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:44,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:31:44,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:31:44,667 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:31:44,668 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:31:44,668 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:31:44,669 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:31:44,669 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:31:44,669 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:31:44,669 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:44,669 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:31:44,669 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:31:44,669 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration2_Loop [2021-10-11 00:31:44,669 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:31:44,669 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:31:44,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:44,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:44,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:44,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:44,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:44,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:44,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:44,766 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:31:44,766 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:44,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:44,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:44,773 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:44,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:44,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:44,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:44,774 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:44,774 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:44,787 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:44,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:44,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:44,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:44,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:44,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:44,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:44,832 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:44,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:44,843 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:44,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:44,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:44,873 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:44,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:44,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:44,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:44,880 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:44,880 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:31:44,883 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:44,904 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:44,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:44,906 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:44,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:44,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:44,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:44,907 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:44,907 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:31:44,917 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:31:44,919 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-11 00:31:44,920 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:44,922 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:31:44,922 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:31:44,923 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:31:44,923 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:44,954 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:31:44,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:45,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 00:31:45,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:45,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 00:31:45,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:45,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:45,079 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-11 00:31:45,079 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 6 Second operand 4 states. [2021-10-11 00:31:45,252 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 73 states and 92 transitions. Complement of second has 15 states. [2021-10-11 00:31:45,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-11 00:31:45,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-10-11 00:31:45,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2021-10-11 00:31:45,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2021-10-11 00:31:45,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:45,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2021-10-11 00:31:45,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:45,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2021-10-11 00:31:45,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:45,255 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 92 transitions. [2021-10-11 00:31:45,258 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-11 00:31:45,261 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 51 states and 66 transitions. [2021-10-11 00:31:45,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-10-11 00:31:45,261 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2021-10-11 00:31:45,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 66 transitions. [2021-10-11 00:31:45,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:31:45,262 INFO L692 BuchiCegarLoop]: Abstraction has 51 states and 66 transitions. [2021-10-11 00:31:45,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 66 transitions. [2021-10-11 00:31:45,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2021-10-11 00:31:45,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2021-10-11 00:31:45,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2021-10-11 00:31:45,269 INFO L715 BuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2021-10-11 00:31:45,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:45,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:31:45,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:31:45,270 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand 5 states. [2021-10-11 00:31:45,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:45,341 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2021-10-11 00:31:45,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:31:45,342 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 60 transitions. [2021-10-11 00:31:45,345 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-10-11 00:31:45,346 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 42 states and 48 transitions. [2021-10-11 00:31:45,347 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2021-10-11 00:31:45,347 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2021-10-11 00:31:45,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 48 transitions. [2021-10-11 00:31:45,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:31:45,348 INFO L692 BuchiCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-10-11 00:31:45,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 48 transitions. [2021-10-11 00:31:45,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-11 00:31:45,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-10-11 00:31:45,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2021-10-11 00:31:45,354 INFO L715 BuchiCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-10-11 00:31:45,354 INFO L595 BuchiCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-10-11 00:31:45,354 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-11 00:31:45,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 48 transitions. [2021-10-11 00:31:45,356 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2021-10-11 00:31:45,356 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:31:45,356 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:31:45,357 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:31:45,357 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-11 00:31:45,358 INFO L794 eck$LassoCheckResult]: Stem: 479#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(20);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 478#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet9;havoc main_#t~nondet9; 470#L29 assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 471#L33 assume !(main_~n~0 < 0 || main_~n~0 > 46340); 481#L36 call main_#t~ret11 := mult(main_~m~0, main_~n~0);< 487#multENTRY ~n := #in~n;~m := #in~m; 493#L18 assume !(~m < 0); 491#L21 assume 0 == ~m;#res := 0; 492#multFINAL assume true; 505#multEXIT >#46#return; 504#L36-1 main_~res1~0 := main_#t~ret11;havoc main_#t~ret11; 500#L37 call main_#t~ret12 := mult(main_~n~0, main_~m~0);< 503#multENTRY [2021-10-11 00:31:45,358 INFO L796 eck$LassoCheckResult]: Loop: 503#multENTRY ~n := #in~n;~m := #in~m; 502#L18 assume ~m < 0; 499#L19 call #t~ret7 := mult(~n, -~m);< 503#multENTRY [2021-10-11 00:31:45,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:45,358 INFO L82 PathProgramCache]: Analyzing trace with hash 248917746, now seen corresponding path program 1 times [2021-10-11 00:31:45,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:45,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473701903] [2021-10-11 00:31:45,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:45,372 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:45,389 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:45,396 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:45,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:45,400 INFO L82 PathProgramCache]: Analyzing trace with hash 29925, now seen corresponding path program 3 times [2021-10-11 00:31:45,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:45,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110105092] [2021-10-11 00:31:45,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:45,405 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:45,406 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:45,408 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:45,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:45,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1899948972, now seen corresponding path program 1 times [2021-10-11 00:31:45,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:45,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208472700] [2021-10-11 00:31:45,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:45,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-11 00:31:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:45,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:45,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208472700] [2021-10-11 00:31:45,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:31:45,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:31:45,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623121430] [2021-10-11 00:31:45,528 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:31:45,528 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:31:45,529 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:31:45,529 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:31:45,529 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:31:45,529 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:45,529 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:31:45,529 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:31:45,529 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration3_Loop [2021-10-11 00:31:45,529 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:31:45,529 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:31:45,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:45,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:45,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:45,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:45,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:45,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:45,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:45,629 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:31:45,629 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:45,636 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:45,636 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:45,661 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:45,661 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret7=0} Honda state: {mult_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:45,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:45,693 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:31:45,714 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:45,714 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret8=0} Honda state: {mult_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:45,751 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:45,751 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:45,768 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:45,768 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:45,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:45,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:31:45,820 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:45,820 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:45,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:45,857 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:45,917 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:31:45,917 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:46,024 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:31:46,026 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:31:46,026 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:31:46,026 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:31:46,027 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:31:46,027 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:31:46,027 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:46,027 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:31:46,027 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:31:46,027 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration3_Loop [2021-10-11 00:31:46,027 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:31:46,027 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:31:46,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:46,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:46,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:46,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:46,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:46,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:46,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:46,121 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:31:46,121 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:46,124 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:46,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:46,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:46,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:46,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:46,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:46,128 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:46,128 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:46,151 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:46,188 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:46,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:46,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:46,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:46,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:46,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:46,193 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:46,193 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:46,204 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:46,239 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:46,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:46,241 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:46,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:46,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:46,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:46,242 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:46,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:46,267 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:46,305 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:46,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:46,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:46,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:46,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:46,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:46,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:46,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:46,327 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:46,363 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:46,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:46,365 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:46,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:46,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:46,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:46,366 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:46,366 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:46,387 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:31:46,391 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-11 00:31:46,391 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:46,393 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:31:46,394 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:31:46,394 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:31:46,394 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:46,426 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:31:46,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:46,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 00:31:46,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:46,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 00:31:46,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:46,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:46,637 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-10-11 00:31:46,637 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 48 transitions. cyclomatic complexity: 9 Second operand 5 states. [2021-10-11 00:31:46,783 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 48 transitions. cyclomatic complexity: 9. Second operand 5 states. Result 82 states and 91 transitions. Complement of second has 14 states. [2021-10-11 00:31:46,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-11 00:31:46,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-11 00:31:46,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-10-11 00:31:46,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 3 letters. [2021-10-11 00:31:46,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:46,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-11 00:31:46,786 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:46,786 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 6 letters. [2021-10-11 00:31:46,786 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:46,786 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 91 transitions. [2021-10-11 00:31:46,794 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-11 00:31:46,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 63 states and 71 transitions. [2021-10-11 00:31:46,799 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2021-10-11 00:31:46,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2021-10-11 00:31:46,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 71 transitions. [2021-10-11 00:31:46,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:31:46,799 INFO L692 BuchiCegarLoop]: Abstraction has 63 states and 71 transitions. [2021-10-11 00:31:46,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 71 transitions. [2021-10-11 00:31:46,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 36. [2021-10-11 00:31:46,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-10-11 00:31:46,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2021-10-11 00:31:46,816 INFO L715 BuchiCegarLoop]: Abstraction has 36 states and 42 transitions. [2021-10-11 00:31:46,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:31:46,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:31:46,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:31:46,818 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand 5 states. [2021-10-11 00:31:46,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:31:46,857 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2021-10-11 00:31:46,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:31:46,858 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 41 transitions. [2021-10-11 00:31:46,859 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-11 00:31:46,860 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 36 states and 40 transitions. [2021-10-11 00:31:46,860 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-11 00:31:46,860 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-11 00:31:46,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 40 transitions. [2021-10-11 00:31:46,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:31:46,861 INFO L692 BuchiCegarLoop]: Abstraction has 36 states and 40 transitions. [2021-10-11 00:31:46,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 40 transitions. [2021-10-11 00:31:46,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2021-10-11 00:31:46,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2021-10-11 00:31:46,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2021-10-11 00:31:46,865 INFO L715 BuchiCegarLoop]: Abstraction has 32 states and 36 transitions. [2021-10-11 00:31:46,865 INFO L595 BuchiCegarLoop]: Abstraction has 32 states and 36 transitions. [2021-10-11 00:31:46,865 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-11 00:31:46,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 36 transitions. [2021-10-11 00:31:46,866 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-10-11 00:31:46,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:31:46,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:31:46,867 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:31:46,867 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-11 00:31:46,867 INFO L794 eck$LassoCheckResult]: Stem: 765#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(20);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 764#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet9;havoc main_#t~nondet9; 758#L29 assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 759#L33 assume !(main_~n~0 < 0 || main_~n~0 > 46340); 767#L36 call main_#t~ret11 := mult(main_~m~0, main_~n~0);< 772#multENTRY ~n := #in~n;~m := #in~m; 778#L18 assume !(~m < 0); 775#L21 assume 0 == ~m;#res := 0; 774#multFINAL assume true; 773#multEXIT >#46#return; 769#L36-1 main_~res1~0 := main_#t~ret11;havoc main_#t~ret11; 757#L37 call main_#t~ret12 := mult(main_~n~0, main_~m~0);< 754#multENTRY [2021-10-11 00:31:46,867 INFO L796 eck$LassoCheckResult]: Loop: 754#multENTRY ~n := #in~n;~m := #in~m; 756#L18 assume !(~m < 0); 766#L21 assume !(0 == ~m); 755#L24 call #t~ret8 := mult(~n, ~m - 1);< 754#multENTRY [2021-10-11 00:31:46,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:46,868 INFO L82 PathProgramCache]: Analyzing trace with hash 248917746, now seen corresponding path program 2 times [2021-10-11 00:31:46,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:46,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336480654] [2021-10-11 00:31:46,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:46,881 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:46,892 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:46,896 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:46,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:46,896 INFO L82 PathProgramCache]: Analyzing trace with hash 929640, now seen corresponding path program 1 times [2021-10-11 00:31:46,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:46,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516119679] [2021-10-11 00:31:46,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:46,900 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:46,902 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:46,903 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:46,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:46,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1231125977, now seen corresponding path program 1 times [2021-10-11 00:31:46,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:46,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448183850] [2021-10-11 00:31:46,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:46,916 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:46,929 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:46,934 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:46,994 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:31:46,994 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:31:46,994 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:31:46,994 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:31:46,994 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:31:46,994 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:46,994 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:31:46,994 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:31:46,994 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration4_Loop [2021-10-11 00:31:46,995 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:31:46,995 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:31:46,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:47,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:47,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:47,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:47,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:47,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:47,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:47,097 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:31:47,097 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:47,112 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:47,112 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:47,136 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:47,137 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:47,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:47,166 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:47,194 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:31:47,194 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:31:47,218 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:31:47,219 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:31:47,219 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:31:47,219 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:31:47,219 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:31:47,219 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:31:47,220 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:47,220 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:31:47,220 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:31:47,220 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration4_Loop [2021-10-11 00:31:47,220 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:31:47,220 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:31:47,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:47,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:47,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:47,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:47,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:47,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:47,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:47,319 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:31:47,319 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:47,329 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:47,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:47,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:47,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:47,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:47,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:47,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:47,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:47,347 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:47,370 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:47,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:47,372 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:47,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:47,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:47,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:47,372 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:47,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:31:47,374 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:47,402 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:47,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:47,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:47,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:47,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:47,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:47,405 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:47,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:31:47,422 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:47,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:47,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:47,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:47,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:47,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:47,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:47,446 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:47,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:31:47,466 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:31:47,470 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:31:47,471 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:47,477 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:31:47,478 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:31:47,478 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:31:47,478 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:47,508 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:31:47,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:47,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 00:31:47,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:47,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 00:31:47,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:47,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:47,720 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2021-10-11 00:31:47,720 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 36 transitions. cyclomatic complexity: 6 Second operand 6 states. [2021-10-11 00:31:47,855 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 36 transitions. cyclomatic complexity: 6. Second operand 6 states. Result 42 states and 46 transitions. Complement of second has 17 states. [2021-10-11 00:31:47,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-11 00:31:47,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-11 00:31:47,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2021-10-11 00:31:47,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 4 letters. [2021-10-11 00:31:47,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:47,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 16 letters. Loop has 4 letters. [2021-10-11 00:31:47,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:47,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 8 letters. [2021-10-11 00:31:47,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:47,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 46 transitions. [2021-10-11 00:31:47,865 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-11 00:31:47,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 16 states and 16 transitions. [2021-10-11 00:31:47,869 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-10-11 00:31:47,870 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-11 00:31:47,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 16 transitions. [2021-10-11 00:31:47,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:31:47,870 INFO L692 BuchiCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-11 00:31:47,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 16 transitions. [2021-10-11 00:31:47,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 9. [2021-10-11 00:31:47,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-11 00:31:47,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-10-11 00:31:47,874 INFO L715 BuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-10-11 00:31:47,874 INFO L595 BuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-10-11 00:31:47,874 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-11 00:31:47,874 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 9 transitions. [2021-10-11 00:31:47,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-11 00:31:47,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:31:47,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:31:47,875 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-11 00:31:47,875 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-11 00:31:47,876 INFO L794 eck$LassoCheckResult]: Stem: 925#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(20);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 919#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet9;havoc main_#t~nondet9; 920#L29 assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 927#L33 assume !(main_~n~0 < 0 || main_~n~0 > 46340); 924#L36 call main_#t~ret11 := mult(main_~m~0, main_~n~0);< 921#multENTRY [2021-10-11 00:31:47,876 INFO L796 eck$LassoCheckResult]: Loop: 921#multENTRY ~n := #in~n;~m := #in~m; 923#L18 assume !(~m < 0); 926#L21 assume !(0 == ~m); 922#L24 call #t~ret8 := mult(~n, ~m - 1);< 921#multENTRY [2021-10-11 00:31:47,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:47,876 INFO L82 PathProgramCache]: Analyzing trace with hash 42056133, now seen corresponding path program 2 times [2021-10-11 00:31:47,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:47,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911643291] [2021-10-11 00:31:47,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:47,885 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:47,911 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:47,924 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:47,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:47,925 INFO L82 PathProgramCache]: Analyzing trace with hash 929640, now seen corresponding path program 2 times [2021-10-11 00:31:47,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:47,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256927708] [2021-10-11 00:31:47,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:47,928 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:47,930 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:47,932 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:47,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:47,932 INFO L82 PathProgramCache]: Analyzing trace with hash 332752684, now seen corresponding path program 2 times [2021-10-11 00:31:47,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:47,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100631245] [2021-10-11 00:31:47,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:47,942 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:47,956 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:47,965 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:48,023 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:31:48,023 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:31:48,023 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:31:48,023 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:31:48,023 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:31:48,023 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:48,023 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:31:48,023 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:31:48,023 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration5_Loop [2021-10-11 00:31:48,023 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:31:48,023 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:31:48,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:48,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:48,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:48,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:48,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:48,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:48,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:48,112 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:31:48,112 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:48,116 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:48,116 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:48,132 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:48,132 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:48,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:48,159 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:31:48,161 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:48,161 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:48,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:48,182 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:31:48,185 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:48,185 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:48,206 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:48,206 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:31:48,209 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:48,209 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret7=0} Honda state: {mult_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:48,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:48,230 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:48,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:31:48,253 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:48,275 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:31:48,277 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:31:48,277 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:31:48,277 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:31:48,277 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:31:48,277 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:31:48,277 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:48,277 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:31:48,277 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:31:48,277 INFO L133 ssoRankerPreferences]: Filename of dumped script: MultCommutative-2.c_Iteration5_Loop [2021-10-11 00:31:48,277 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:31:48,277 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:31:48,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:48,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:48,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:48,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:48,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:48,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:48,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:48,367 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:31:48,367 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:48,370 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:48,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:48,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:48,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:48,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:48,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:48,372 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:48,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:31:48,381 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:48,402 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:48,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:48,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:48,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:48,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:48,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:48,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:48,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:31:48,406 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:48,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:48,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:48,433 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:48,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:48,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:48,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:48,436 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:48,436 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:31:48,440 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:48,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:31:48,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:48,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:48,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:48,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:48,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:48,465 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:48,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:31:48,467 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:31:48,470 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:31:48,470 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdf1e5c5-5b0c-4eed-84ee-465ad09aaa28/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:48,473 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:31:48,473 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:31:48,473 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:31:48,473 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2021-10-11 00:31:48,493 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:31:48,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:48,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:31:48,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:48,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 00:31:48,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:48,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:48,667 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-11 00:31:48,667 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 9 transitions. cyclomatic complexity: 1 Second operand 5 states. [2021-10-11 00:31:48,751 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 9 transitions. cyclomatic complexity: 1. Second operand 5 states. Result 19 states and 19 transitions. Complement of second has 15 states. [2021-10-11 00:31:48,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-11 00:31:48,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-11 00:31:48,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2021-10-11 00:31:48,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-11 00:31:48,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:48,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2021-10-11 00:31:48,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:48,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 5 letters. Loop has 8 letters. [2021-10-11 00:31:48,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:48,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 19 transitions. [2021-10-11 00:31:48,758 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:31:48,758 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2021-10-11 00:31:48,758 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:31:48,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:31:48,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:31:48,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:31:48,759 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:31:48,759 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:31:48,759 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:31:48,759 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-11 00:31:48,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:31:48,760 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:31:48,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:31:48,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:31:48 BoogieIcfgContainer [2021-10-11 00:31:48,766 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:31:48,767 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:31:48,767 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:31:48,767 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:31:48,768 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:41" (3/4) ... [2021-10-11 00:31:48,771 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:31:48,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:31:48,773 INFO L168 Benchmark]: Toolchain (without parser) took 7811.21 ms. Allocated memory was 119.5 MB in the beginning and 184.5 MB in the end (delta: 65.0 MB). Free memory was 79.3 MB in the beginning and 135.1 MB in the end (delta: -55.8 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:48,774 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 119.5 MB. Free memory is still 95.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:31:48,776 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.97 ms. Allocated memory is still 119.5 MB. Free memory was 79.1 MB in the beginning and 95.0 MB in the end (delta: -15.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:48,777 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.49 ms. Allocated memory is still 119.5 MB. Free memory was 95.0 MB in the beginning and 93.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:48,785 INFO L168 Benchmark]: Boogie Preprocessor took 21.00 ms. Allocated memory is still 119.5 MB. Free memory was 93.4 MB in the beginning and 92.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:31:48,788 INFO L168 Benchmark]: RCFGBuilder took 367.50 ms. Allocated memory is still 119.5 MB. Free memory was 92.4 MB in the beginning and 79.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:48,794 INFO L168 Benchmark]: BuchiAutomizer took 7128.59 ms. Allocated memory was 119.5 MB in the beginning and 184.5 MB in the end (delta: 65.0 MB). Free memory was 79.3 MB in the beginning and 136.2 MB in the end (delta: -56.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:48,794 INFO L168 Benchmark]: Witness Printer took 4.41 ms. Allocated memory is still 184.5 MB. Free memory was 136.2 MB in the beginning and 135.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:31:48,800 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 119.5 MB. Free memory is still 95.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 247.97 ms. Allocated memory is still 119.5 MB. Free memory was 79.1 MB in the beginning and 95.0 MB in the end (delta: -15.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.49 ms. Allocated memory is still 119.5 MB. Free memory was 95.0 MB in the beginning and 93.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.00 ms. Allocated memory is still 119.5 MB. Free memory was 93.4 MB in the beginning and 92.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 367.50 ms. Allocated memory is still 119.5 MB. Free memory was 92.4 MB in the beginning and 79.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 7128.59 ms. Allocated memory was 119.5 MB in the beginning and 184.5 MB in the end (delta: 65.0 MB). Free memory was 79.3 MB in the beginning and 136.2 MB in the end (delta: -56.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.41 ms. Allocated memory is still 184.5 MB. Free memory was 136.2 MB in the beginning and 135.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (3 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * \old(m) and consists of 4 locations. One deterministic module has affine ranking function -1 * \old(m) and consists of 5 locations. One deterministic module has affine ranking function -1 * \old(m) and consists of 5 locations. One deterministic module has affine ranking function \old(m) and consists of 6 locations. One deterministic module has affine ranking function \old(m) and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.0s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 5.0s. Construction of modules took 0.2s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 53 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 42 states and ocurred in iteration 2. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 128 SDtfs, 140 SDslu, 126 SDs, 0 SdLazy, 164 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT3 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp79 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf94 smp87 dnf100 smp100 tf112 neg97 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 18 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...