./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_06afeb68-86db-4995-a556-63302c73a4b2/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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_06afeb68-86db-4995-a556-63302c73a4b2/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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 64bit --witnessprinter.graph.data.programhash f560e32afd5a40adf4a98abbf810cb377947c4f4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:21:52,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:21:52,200 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:21:52,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:21:52,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:21:52,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:21:52,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:21:52,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:21:52,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:21:52,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:21:52,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:21:52,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:21:52,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:21:52,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:21:52,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:21:52,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:21:52,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:21:52,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:21:52,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:21:52,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:21:52,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:21:52,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:21:52,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:21:52,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:21:52,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:21:52,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:21:52,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:21:52,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:21:52,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:21:52,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:21:52,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:21:52,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:21:52,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:21:52,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:21:52,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:21:52,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:21:52,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:21:52,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:21:52,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:21:52,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:21:52,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:21:52,301 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-11 00:21:52,343 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:21:52,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:21:52,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:21:52,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:21:52,360 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:21:52,360 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:21:52,360 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:21:52,361 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:21:52,361 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:21:52,361 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:21:52,361 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:21:52,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:21:52,362 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:21:52,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:21:52,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:21:52,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:21:52,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:21:52,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:21:52,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:21:52,363 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:21:52,363 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:21:52,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:21:52,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:21:52,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:21:52,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:21:52,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:21:52,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:21:52,366 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:21:52,367 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_06afeb68-86db-4995-a556-63302c73a4b2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f560e32afd5a40adf4a98abbf810cb377947c4f4 [2021-10-11 00:21:52,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:21:52,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:21:52,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:21:52,709 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:21:52,710 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:21:52,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2021-10-11 00:21:52,797 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/bin/uautomizer-Z5i5R5N3CC/data/33d9328e3/57f9923974844d62be7e7bc4feb3f5b9/FLAG18a1f2f27 [2021-10-11 00:21:53,274 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:21:53,277 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2021-10-11 00:21:53,289 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/bin/uautomizer-Z5i5R5N3CC/data/33d9328e3/57f9923974844d62be7e7bc4feb3f5b9/FLAG18a1f2f27 [2021-10-11 00:21:53,645 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/bin/uautomizer-Z5i5R5N3CC/data/33d9328e3/57f9923974844d62be7e7bc4feb3f5b9 [2021-10-11 00:21:53,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:21:53,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:21:53,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:53,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:21:53,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:21:53,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:53" (1/1) ... [2021-10-11 00:21:53,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d7edd17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:53, skipping insertion in model container [2021-10-11 00:21:53,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:53" (1/1) ... [2021-10-11 00:21:53,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:21:53,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:21:53,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:53,832 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:21:53,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:53,870 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:21:53,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:53 WrapperNode [2021-10-11 00:21:53,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:53,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:53,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:21:53,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:21:53,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:53" (1/1) ... [2021-10-11 00:21:53,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:53" (1/1) ... [2021-10-11 00:21:53,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:53,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:21:53,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:21:53,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:21:53,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:53" (1/1) ... [2021-10-11 00:21:53,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:53" (1/1) ... [2021-10-11 00:21:53,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:53" (1/1) ... [2021-10-11 00:21:53,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:53" (1/1) ... [2021-10-11 00:21:53,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:53" (1/1) ... [2021-10-11 00:21:53,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:53" (1/1) ... [2021-10-11 00:21:53,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:53" (1/1) ... [2021-10-11 00:21:53,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:21:53,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:21:53,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:21:53,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:21:53,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:53" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:21:54,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:21:54,235 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:21:54,235 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:21:54,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:54 BoogieIcfgContainer [2021-10-11 00:21:54,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:21:54,240 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:21:54,240 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:21:54,243 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:21:54,244 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:21:54,246 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:21:53" (1/3) ... [2021-10-11 00:21:54,247 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d1eb51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:21:54, skipping insertion in model container [2021-10-11 00:21:54,248 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:21:54,248 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:53" (2/3) ... [2021-10-11 00:21:54,248 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d1eb51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:21:54, skipping insertion in model container [2021-10-11 00:21:54,249 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:21:54,249 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:54" (3/3) ... [2021-10-11 00:21:54,250 INFO L389 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2021-10-11 00:21:54,303 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:21:54,304 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:21:54,304 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:21:54,304 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:21:54,304 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:21:54,304 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:21:54,304 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:21:54,305 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:21:54,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2021-10-11 00:21:54,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:21:54,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:21:54,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:21:54,337 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-11 00:21:54,338 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:21:54,338 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:21:54,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2021-10-11 00:21:54,339 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:21:54,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:21:54,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:21:54,340 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-11 00:21:54,340 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:21:54,347 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L17true assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 8#L20-2true [2021-10-11 00:21:54,347 INFO L796 eck$LassoCheckResult]: Loop: 8#L20-2true assume !!(main_~i~0 > 0); 10#L20true assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 8#L20-2true [2021-10-11 00:21:54,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:54,353 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-10-11 00:21:54,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:54,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394759128] [2021-10-11 00:21:54,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:54,447 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:54,453 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:54,468 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:54,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:54,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2021-10-11 00:21:54,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:54,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963122223] [2021-10-11 00:21:54,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:54,477 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:54,481 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:54,483 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:54,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:54,485 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2021-10-11 00:21:54,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:54,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284013326] [2021-10-11 00:21:54,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:54,548 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 00:21:54,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284013326] [2021-10-11 00:21:54,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:54,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:21:54,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778526641] [2021-10-11 00:21:54,608 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:21:54,608 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:21:54,608 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:21:54,608 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:21:54,609 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:21:54,609 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:54,609 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:21:54,609 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:21:54,609 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration1_Loop [2021-10-11 00:21:54,609 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:21:54,610 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:21:54,647 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 00:21:54,655 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 00:21:54,659 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 00:21:54,726 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:21:54,727 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:54,736 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:21:54,736 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 00:21:54,764 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:21:54,764 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:54,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:21:54,805 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 00:21:54,822 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:21:54,822 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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) [2021-10-11 00:21:54,859 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:21:54,860 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 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_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:54,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:21:54,924 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 00:21:54,992 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:21:54,994 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:21:54,995 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:21:54,995 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:21:54,995 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:21:54,995 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:21:54,995 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:54,995 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:21:54,995 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:21:54,995 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration1_Loop [2021-10-11 00:21:54,996 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:21:54,996 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:21:54,998 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 00:21:55,010 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 00:21:55,013 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 00:21:55,090 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:21:55,094 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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) [2021-10-11 00:21:55,127 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 00:21:55,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:55,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:55,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:55,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:55,141 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:55,142 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:55,177 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_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:55,215 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 00:21:55,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:55,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:55,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:55,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:55,225 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:55,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:55,244 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_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:55,285 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 00:21:55,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:55,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:55,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:55,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:55,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:55,290 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:55,290 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:21:55,304 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:21:55,322 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:21:55,322 INFO L444 ModelExtractionUtils]: 1 out of 4 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_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:55,337 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:21:55,337 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:21:55,337 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:21:55,338 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:55,363 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:21:55,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:55,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:21:55,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:55,434 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:21:55,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:55,457 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 00:21:55,471 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-11 00:21:55,486 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2021-10-11 00:21:55,577 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 8 states. [2021-10-11 00:21:55,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-11 00:21:55,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:21:55,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-10-11 00:21:55,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-11 00:21:55,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:55,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-11 00:21:55,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:55,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-11 00:21:55,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:55,597 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2021-10-11 00:21:55,600 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:21:55,604 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2021-10-11 00:21:55,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-11 00:21:55,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-11 00:21:55,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-10-11 00:21:55,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:21:55,613 INFO L692 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-11 00:21:55,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-10-11 00:21:55,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-10-11 00:21:55,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-11 00:21:55,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-10-11 00:21:55,642 INFO L715 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-11 00:21:55,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:55,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:21:55,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:21:55,649 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand 3 states. [2021-10-11 00:21:55,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:55,672 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2021-10-11 00:21:55,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:21:55,673 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 8 transitions. [2021-10-11 00:21:55,676 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:21:55,677 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 7 transitions. [2021-10-11 00:21:55,677 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-11 00:21:55,677 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-11 00:21:55,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2021-10-11 00:21:55,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:21:55,677 INFO L692 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-10-11 00:21:55,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2021-10-11 00:21:55,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-10-11 00:21:55,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-11 00:21:55,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-10-11 00:21:55,679 INFO L715 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-10-11 00:21:55,679 INFO L595 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-10-11 00:21:55,679 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:21:55,680 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2021-10-11 00:21:55,681 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:21:55,681 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:21:55,681 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:21:55,682 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-11 00:21:55,682 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:21:55,682 INFO L794 eck$LassoCheckResult]: Stem: 92#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 93#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 94#L20-2 assume !!(main_~i~0 > 0); 97#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 95#L20-2 [2021-10-11 00:21:55,682 INFO L796 eck$LassoCheckResult]: Loop: 95#L20-2 assume !!(main_~i~0 > 0); 96#L20 assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 95#L20-2 [2021-10-11 00:21:55,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:55,684 INFO L82 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2021-10-11 00:21:55,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:55,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159267783] [2021-10-11 00:21:55,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:55,707 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:55,718 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:55,731 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:55,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:55,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2021-10-11 00:21:55,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:55,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042494889] [2021-10-11 00:21:55,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:55,736 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:55,739 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:55,740 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:55,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:55,745 INFO L82 PathProgramCache]: Analyzing trace with hash 920231916, now seen corresponding path program 1 times [2021-10-11 00:21:55,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:55,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595540713] [2021-10-11 00:21:55,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:55,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:55,770 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:55,778 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:55,801 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:21:55,801 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:21:55,801 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:21:55,801 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:21:55,801 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:21:55,801 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:55,801 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:21:55,801 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:21:55,801 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration2_Loop [2021-10-11 00:21:55,802 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:21:55,802 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:21:55,804 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 00:21:55,810 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 00:21:55,816 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 00:21:55,918 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:21:55,918 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:55,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:21:55,931 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:21:55,941 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:21:55,941 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:55,973 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:21:55,973 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:21:55,990 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:21:55,990 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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) [2021-10-11 00:21:56,037 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:21:56,038 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 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_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:56,084 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:21:56,084 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:21:56,113 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:21:56,114 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:21:56,114 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:21:56,114 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:21:56,114 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:21:56,114 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:21:56,115 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:56,115 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:21:56,115 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:21:56,115 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration2_Loop [2021-10-11 00:21:56,115 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:21:56,115 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:21:56,116 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 00:21:56,123 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 00:21:56,130 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 00:21:56,183 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:21:56,184 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:56,190 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 00:21:56,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:56,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:56,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:56,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:56,196 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:56,196 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:56,216 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_06afeb68-86db-4995-a556-63302c73a4b2/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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:56,246 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 00:21:56,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:56,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:56,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:56,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:56,251 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:56,251 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:56,292 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_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:56,333 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 00:21:56,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:56,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:56,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:56,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:56,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:56,337 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:56,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:56,356 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:21:56,361 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:21:56,361 INFO L444 ModelExtractionUtils]: 1 out of 4 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_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:56,370 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:21:56,370 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:21:56,371 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:21:56,371 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:56,401 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:21:56,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:56,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:21:56,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:56,433 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:21:56,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:56,454 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 00:21:56,455 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-11 00:21:56,456 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 3 states. [2021-10-11 00:21:56,477 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 10 states and 13 transitions. Complement of second has 5 states. [2021-10-11 00:21:56,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-11 00:21:56,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:21:56,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-11 00:21:56,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-11 00:21:56,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:56,483 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-11 00:21:56,484 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:56,484 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-11 00:21:56,484 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:56,484 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2021-10-11 00:21:56,486 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:21:56,488 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 13 transitions. [2021-10-11 00:21:56,488 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-11 00:21:56,488 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-11 00:21:56,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-10-11 00:21:56,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:21:56,489 INFO L692 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-11 00:21:56,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-10-11 00:21:56,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-11 00:21:56,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-11 00:21:56,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-10-11 00:21:56,491 INFO L715 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-11 00:21:56,492 INFO L595 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-11 00:21:56,492 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-11 00:21:56,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-10-11 00:21:56,494 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:21:56,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:21:56,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:21:56,496 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2021-10-11 00:21:56,496 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:21:56,497 INFO L794 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 148#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 149#L20-2 assume !!(main_~i~0 > 0); 156#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 155#L20-2 assume !!(main_~i~0 > 0); 154#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 150#L20-2 [2021-10-11 00:21:56,497 INFO L796 eck$LassoCheckResult]: Loop: 150#L20-2 assume !!(main_~i~0 > 0); 151#L20 assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 150#L20-2 [2021-10-11 00:21:56,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:56,498 INFO L82 PathProgramCache]: Analyzing trace with hash 920231918, now seen corresponding path program 2 times [2021-10-11 00:21:56,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:56,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181626974] [2021-10-11 00:21:56,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:56,526 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:56,534 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:56,538 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:56,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:56,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 3 times [2021-10-11 00:21:56,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:56,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008987488] [2021-10-11 00:21:56,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:56,550 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:56,554 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:56,557 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:56,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:56,557 INFO L82 PathProgramCache]: Analyzing trace with hash -420389359, now seen corresponding path program 2 times [2021-10-11 00:21:56,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:56,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045323865] [2021-10-11 00:21:56,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:56,577 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:56,600 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:56,602 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:56,620 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:21:56,620 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:21:56,621 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:21:56,621 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:21:56,621 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:21:56,621 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:56,621 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:21:56,621 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:21:56,621 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration3_Loop [2021-10-11 00:21:56,622 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:21:56,622 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:21:56,623 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 00:21:56,637 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 00:21:56,641 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 00:21:56,678 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:21:56,678 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:56,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:21:56,682 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 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:56,733 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:21:56,733 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:21:56,793 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:21:56,795 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:21:56,795 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:21:56,795 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:21:56,795 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:21:56,795 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:21:56,795 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:56,795 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:21:56,795 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:21:56,795 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration3_Loop [2021-10-11 00:21:56,795 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:21:56,796 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:21:56,797 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 00:21:56,806 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 00:21:56,809 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 00:21:56,893 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:21:56,893 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:56,908 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 00:21:56,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:56,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:56,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:56,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:56,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:56,916 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:56,916 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:21:56,936 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:21:56,940 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:21:56,940 INFO L444 ModelExtractionUtils]: 1 out of 4 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_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:56,950 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:21:56,950 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:21:56,951 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:21:56,951 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:56,983 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:21:56,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:57,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:57,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:21:57,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:57,013 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:21:57,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:57,024 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 00:21:57,025 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-11 00:21:57,025 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2021-10-11 00:21:57,035 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2021-10-11 00:21:57,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-11 00:21:57,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:21:57,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-11 00:21:57,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-11 00:21:57,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:57,036 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-11 00:21:57,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:57,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:21:57,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:57,062 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:21:57,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:57,073 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 00:21:57,073 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-11 00:21:57,074 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2021-10-11 00:21:57,083 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2021-10-11 00:21:57,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-11 00:21:57,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:21:57,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-11 00:21:57,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-11 00:21:57,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:57,084 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-11 00:21:57,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:57,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:21:57,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:57,108 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:21:57,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:57,118 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 00:21:57,119 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-11 00:21:57,119 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2021-10-11 00:21:57,130 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 4 states. [2021-10-11 00:21:57,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-11 00:21:57,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:21:57,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-11 00:21:57,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-11 00:21:57,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:57,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-11 00:21:57,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:57,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-11 00:21:57,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:57,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 20 transitions. [2021-10-11 00:21:57,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-11 00:21:57,134 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 16 transitions. [2021-10-11 00:21:57,134 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-11 00:21:57,134 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-11 00:21:57,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-10-11 00:21:57,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:21:57,134 INFO L692 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-11 00:21:57,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-10-11 00:21:57,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. [2021-10-11 00:21:57,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-11 00:21:57,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-11 00:21:57,136 INFO L715 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-11 00:21:57,136 INFO L595 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-11 00:21:57,136 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-11 00:21:57,136 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-10-11 00:21:57,136 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-11 00:21:57,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:21:57,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:21:57,137 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-11 00:21:57,137 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:21:57,137 INFO L794 eck$LassoCheckResult]: Stem: 299#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 300#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 301#L20-2 assume !!(main_~i~0 > 0); 302#L20 [2021-10-11 00:21:57,137 INFO L796 eck$LassoCheckResult]: Loop: 302#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 305#L20-2 assume !!(main_~i~0 > 0); 302#L20 [2021-10-11 00:21:57,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:57,138 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2021-10-11 00:21:57,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:57,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637324169] [2021-10-11 00:21:57,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:57,142 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:57,145 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:57,146 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:57,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:57,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1532, now seen corresponding path program 1 times [2021-10-11 00:21:57,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:57,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078487212] [2021-10-11 00:21:57,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:57,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:57,154 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:57,155 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:57,156 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:57,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:57,157 INFO L82 PathProgramCache]: Analyzing trace with hash 29684900, now seen corresponding path program 3 times [2021-10-11 00:21:57,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:57,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900836989] [2021-10-11 00:21:57,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:57,161 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:57,165 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:57,174 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:57,234 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:21:57,234 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:21:57,234 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:21:57,234 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:21:57,234 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:21:57,234 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:57,234 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:21:57,235 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:21:57,235 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration4_Lasso [2021-10-11 00:21:57,235 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:21:57,235 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:21:57,238 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 00:21:57,241 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 00:21:57,252 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 00:21:57,255 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 00:21:57,257 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 00:21:57,260 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 00:21:57,322 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:21:57,322 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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) [2021-10-11 00:21:57,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:21:57,330 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:57,341 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:21:57,341 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:57,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:21:57,389 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:57,428 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:21:57,428 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:57,650 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:21:57,651 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:21:57,652 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:21:57,652 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:21:57,652 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:21:57,652 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:21:57,652 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:57,652 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:21:57,652 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:21:57,652 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration4_Lasso [2021-10-11 00:21:57,652 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:21:57,652 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:21:57,653 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 00:21:57,657 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 00:21:57,659 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 00:21:57,670 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 00:21:57,673 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 00:21:57,686 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 00:21:57,766 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:21:57,767 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:57,781 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 00:21:57,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:57,782 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:57,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:57,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:57,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:57,783 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:57,783 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:21:57,796 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_06afeb68-86db-4995-a556-63302c73a4b2/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) [2021-10-11 00:21:57,837 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 00:21:57,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:57,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:57,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:57,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:57,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:57,840 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:57,840 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:57,850 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_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:57,883 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 00:21:57,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:57,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:57,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:57,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:57,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:57,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:57,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:57,900 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_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:57,933 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 00:21:57,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:57,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:57,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:57,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:57,938 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:57,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:57,960 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_06afeb68-86db-4995-a556-63302c73a4b2/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) [2021-10-11 00:21:57,994 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 00:21:57,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:57,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:57,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:57,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:58,001 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:58,001 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:58,014 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:21:58,046 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-10-11 00:21:58,046 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06afeb68-86db-4995-a556-63302c73a4b2/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 00:21:58,060 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:58,079 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-11 00:21:58,079 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:21:58,079 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~m~0) = 1*ULTIMATE.start_main_~i~0 - 1*ULTIMATE.start_main_~m~0 Supporting invariants [1*ULTIMATE.start_main_~m~0 - 1 >= 0] [2021-10-11 00:21:58,117 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-10-11 00:21:58,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:58,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 00:21:58,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:58,189 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 00:21:58,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:58,253 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 00:21:58,254 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-11 00:21:58,255 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand 4 states. [2021-10-11 00:21:58,293 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 13 states and 16 transitions. Complement of second has 5 states. [2021-10-11 00:21:58,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-11 00:21:58,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-10-11 00:21:58,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-10-11 00:21:58,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-11 00:21:58,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:58,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-11 00:21:58,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:58,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-11 00:21:58,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:58,300 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2021-10-11 00:21:58,303 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:21:58,303 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2021-10-11 00:21:58,303 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:21:58,303 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:21:58,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:21:58,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:21:58,303 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:21:58,304 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:21:58,304 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:21:58,304 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-11 00:21:58,304 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:21:58,304 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:21:58,304 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:21:58,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:21:58 BoogieIcfgContainer [2021-10-11 00:21:58,310 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:21:58,313 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:21:58,313 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:21:58,313 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:21:58,314 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:54" (3/4) ... [2021-10-11 00:21:58,317 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:21:58,317 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:21:58,318 INFO L168 Benchmark]: Toolchain (without parser) took 4668.66 ms. Allocated memory was 102.8 MB in the beginning and 134.2 MB in the end (delta: 31.5 MB). Free memory was 66.7 MB in the beginning and 78.3 MB in the end (delta: -11.6 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:58,319 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 102.8 MB. Free memory was 83.4 MB in the beginning and 83.3 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:58,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.52 ms. Allocated memory is still 102.8 MB. Free memory was 66.5 MB in the beginning and 80.5 MB in the end (delta: -14.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:58,320 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.21 ms. Allocated memory is still 102.8 MB. Free memory was 80.5 MB in the beginning and 79.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:58,321 INFO L168 Benchmark]: Boogie Preprocessor took 29.99 ms. Allocated memory is still 102.8 MB. Free memory was 79.4 MB in the beginning and 78.4 MB in the end (delta: 964.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:58,322 INFO L168 Benchmark]: RCFGBuilder took 291.72 ms. Allocated memory is still 102.8 MB. Free memory was 78.4 MB in the beginning and 69.4 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:58,322 INFO L168 Benchmark]: BuchiAutomizer took 4070.66 ms. Allocated memory was 102.8 MB in the beginning and 134.2 MB in the end (delta: 31.5 MB). Free memory was 69.4 MB in the beginning and 78.3 MB in the end (delta: -8.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:58,323 INFO L168 Benchmark]: Witness Printer took 4.43 ms. Allocated memory is still 134.2 MB. Free memory is still 78.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:58,326 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 102.8 MB. Free memory was 83.4 MB in the beginning and 83.3 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 220.52 ms. Allocated memory is still 102.8 MB. Free memory was 66.5 MB in the beginning and 80.5 MB in the end (delta: -14.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.21 ms. Allocated memory is still 102.8 MB. Free memory was 80.5 MB in the beginning and 79.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.99 ms. Allocated memory is still 102.8 MB. Free memory was 79.4 MB in the beginning and 78.4 MB in the end (delta: 964.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 291.72 ms. Allocated memory is still 102.8 MB. Free memory was 78.4 MB in the beginning and 69.4 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4070.66 ms. Allocated memory was 102.8 MB in the beginning and 134.2 MB in the end (delta: 31.5 MB). Free memory was 69.4 MB in the beginning and 78.3 MB in the end (delta: -8.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.43 ms. Allocated memory is still 134.2 MB. Free memory is still 78.3 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 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function i and consists of 3 locations. One deterministic module has affine ranking function i + -1 * m and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 32 SDtfs, 29 SDslu, 6 SDs, 0 SdLazy, 47 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax185 hnf100 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf94 smp100 dnf100 smp100 tf108 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 68ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...