./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN --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 fb567b374acd8bb9754dd21f812a202296c7800faf8be127cd0c1294b076cd75 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:28:03,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:28:03,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:28:03,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:28:03,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:28:03,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:28:03,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:28:03,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:28:03,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:28:03,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:28:03,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:28:03,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:28:03,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:28:03,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:28:03,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:28:03,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:28:03,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:28:03,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:28:03,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:28:03,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:28:03,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:28:03,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:28:03,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:28:03,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:28:03,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:28:03,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:28:03,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:28:03,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:28:03,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:28:03,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:28:03,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:28:03,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:28:03,950 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:28:03,951 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:28:03,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:28:03,952 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:28:03,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:28:03,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:28:03,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:28:03,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:28:03,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:28:03,957 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-20 09:28:03,979 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:28:03,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:28:03,980 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:28:03,980 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:28:03,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:28:03,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:28:03,982 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:28:03,983 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 09:28:03,983 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 09:28:03,983 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 09:28:03,984 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 09:28:03,984 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 09:28:03,984 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 09:28:03,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:28:03,985 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:28:03,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:28:03,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:28:03,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 09:28:03,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 09:28:03,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 09:28:03,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:28:03,986 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 09:28:03,986 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:28:03,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 09:28:03,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:28:03,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:28:03,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:28:03,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:28:03,989 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 09:28:03,989 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_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb567b374acd8bb9754dd21f812a202296c7800faf8be127cd0c1294b076cd75 [2022-11-20 09:28:04,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:28:04,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:28:04,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:28:04,340 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:28:04,341 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:28:04,342 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2022-11-20 09:28:07,410 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:28:07,651 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:28:07,652 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2022-11-20 09:28:07,662 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/data/f7ec20de2/fce4ade6e5e548e484dd591715a7f659/FLAGdae78af40 [2022-11-20 09:28:08,015 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/data/f7ec20de2/fce4ade6e5e548e484dd591715a7f659 [2022-11-20 09:28:08,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:28:08,019 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:28:08,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:08,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:28:08,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:28:08,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:08" (1/1) ... [2022-11-20 09:28:08,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a5db608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:08, skipping insertion in model container [2022-11-20 09:28:08,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:08" (1/1) ... [2022-11-20 09:28:08,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:28:08,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:28:08,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:08,265 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:28:08,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:08,289 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:28:08,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:08 WrapperNode [2022-11-20 09:28:08,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:08,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:08,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:28:08,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:28:08,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:08" (1/1) ... [2022-11-20 09:28:08,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:08" (1/1) ... [2022-11-20 09:28:08,326 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2022-11-20 09:28:08,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:08,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:28:08,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:28:08,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:28:08,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:08" (1/1) ... [2022-11-20 09:28:08,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:08" (1/1) ... [2022-11-20 09:28:08,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:08" (1/1) ... [2022-11-20 09:28:08,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:08" (1/1) ... [2022-11-20 09:28:08,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:08" (1/1) ... [2022-11-20 09:28:08,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:08" (1/1) ... [2022-11-20 09:28:08,352 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:08" (1/1) ... [2022-11-20 09:28:08,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:08" (1/1) ... [2022-11-20 09:28:08,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:28:08,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:28:08,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:28:08,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:28:08,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:08" (1/1) ... [2022-11-20 09:28:08,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:08,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:08,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:08,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 09:28:08,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:28:08,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:28:08,510 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:28:08,513 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:28:08,588 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:28:08,595 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:28:08,595 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 09:28:08,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:08 BoogieIcfgContainer [2022-11-20 09:28:08,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:28:08,598 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 09:28:08,598 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 09:28:08,603 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 09:28:08,604 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:28:08,604 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 09:28:08" (1/3) ... [2022-11-20 09:28:08,605 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@282136c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 09:28:08, skipping insertion in model container [2022-11-20 09:28:08,605 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:28:08,605 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:08" (2/3) ... [2022-11-20 09:28:08,606 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@282136c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 09:28:08, skipping insertion in model container [2022-11-20 09:28:08,606 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:28:08,606 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:08" (3/3) ... [2022-11-20 09:28:08,607 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c [2022-11-20 09:28:08,664 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 09:28:08,664 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 09:28:08,664 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 09:28:08,664 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 09:28:08,664 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 09:28:08,665 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 09:28:08,665 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 09:28:08,665 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 09:28:08,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:08,688 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 09:28:08,689 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:28:08,689 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:28:08,693 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-20 09:28:08,693 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 09:28:08,694 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 09:28:08,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:08,695 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 09:28:08,695 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:28:08,695 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:28:08,696 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-20 09:28:08,696 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 09:28:08,703 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 6#L21true assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0; 5#L23-2true [2022-11-20 09:28:08,703 INFO L750 eck$LassoCheckResult]: Loop: 5#L23-2true assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 3#L25-2true assume !(main_~j~0#1 < main_~m~0#1); 7#L25-3true main_~i~0#1 := 1 + main_~i~0#1; 5#L23-2true [2022-11-20 09:28:08,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:08,709 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-11-20 09:28:08,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:08,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773968387] [2022-11-20 09:28:08,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:08,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:08,797 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:08,819 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:08,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:08,821 INFO L85 PathProgramCache]: Analyzing trace with hash 43936, now seen corresponding path program 1 times [2022-11-20 09:28:08,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:08,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007051735] [2022-11-20 09:28:08,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:08,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:08,835 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:08,841 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:08,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:08,843 INFO L85 PathProgramCache]: Analyzing trace with hash 889513823, now seen corresponding path program 1 times [2022-11-20 09:28:08,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:08,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288474849] [2022-11-20 09:28:08,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:08,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:08,854 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:08,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:08,963 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:08,963 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:08,964 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:08,964 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:08,964 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 09:28:08,964 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:08,964 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:08,965 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:08,965 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration1_Loop [2022-11-20 09:28:08,965 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:08,965 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:09,008 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:09,034 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:09,039 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:09,065 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:09,167 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:09,167 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 09:28:09,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:09,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:09,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:09,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 09:28:09,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:09,240 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:09,276 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:28:09,276 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: [] [2022-11-20 09:28:09,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:09,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:09,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:09,284 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:09,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 09:28:09,288 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:09,288 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:09,310 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:28:09,310 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: [] [2022-11-20 09:28:09,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:09,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:09,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:09,324 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:09,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 09:28:09,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:09,328 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:09,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:09,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:09,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:09,357 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:09,364 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 09:28:09,364 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:09,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 09:28:09,522 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 09:28:09,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:09,528 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:09,528 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:09,528 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:09,528 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:09,528 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 09:28:09,529 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:09,529 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:09,529 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:09,529 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration1_Loop [2022-11-20 09:28:09,529 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:09,529 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:09,532 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:09,548 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:09,555 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:09,561 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:09,648 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:09,653 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 09:28:09,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:09,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:09,656 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:09,659 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:09,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 09:28:09,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:09,670 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:09,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:09,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:09,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:09,674 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:09,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:09,683 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 09:28:09,691 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-20 09:28:09,691 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 09:28:09,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:09,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:09,725 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:09,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 09:28:09,727 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 09:28:09,728 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 09:28:09,728 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 09:28:09,728 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2022-11-20 09:28:09,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:09,736 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 09:28:09,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:09,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:09,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:09,795 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:09,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:09,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:09,865 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 09:28:09,867 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:09,956 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 63 transitions. Complement of second has 8 states. [2022-11-20 09:28:09,959 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 [2022-11-20 09:28:09,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:09,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2022-11-20 09:28:09,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 3 letters. Loop has 3 letters. [2022-11-20 09:28:09,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:09,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 6 letters. Loop has 3 letters. [2022-11-20 09:28:09,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:09,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 3 letters. Loop has 6 letters. [2022-11-20 09:28:09,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:09,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 63 transitions. [2022-11-20 09:28:09,983 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-20 09:28:09,987 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 15 states and 22 transitions. [2022-11-20 09:28:09,988 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-20 09:28:09,989 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-11-20 09:28:09,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 22 transitions. [2022-11-20 09:28:09,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:28:09,991 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 22 transitions. [2022-11-20 09:28:10,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 22 transitions. [2022-11-20 09:28:10,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-11-20 09:28:10,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2022-11-20 09:28:10,020 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2022-11-20 09:28:10,021 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2022-11-20 09:28:10,021 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 09:28:10,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 21 transitions. [2022-11-20 09:28:10,024 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-20 09:28:10,024 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:28:10,025 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:28:10,025 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-20 09:28:10,025 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-20 09:28:10,026 INFO L748 eck$LassoCheckResult]: Stem: 104#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 105#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 109#L21 assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0; 110#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 100#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 101#L28-2 [2022-11-20 09:28:10,026 INFO L750 eck$LassoCheckResult]: Loop: 101#L28-2 assume !!(main_~k~0#1 < main_~N~0#1 - 1);main_~k~0#1 := 1 + main_~k~0#1; 101#L28-2 [2022-11-20 09:28:10,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:10,032 INFO L85 PathProgramCache]: Analyzing trace with hash 28693995, now seen corresponding path program 1 times [2022-11-20 09:28:10,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:10,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567032268] [2022-11-20 09:28:10,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:10,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:10,041 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:10,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:10,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:10,054 INFO L85 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2022-11-20 09:28:10,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:10,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568574609] [2022-11-20 09:28:10,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:10,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:10,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:10,065 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:10,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:10,065 INFO L85 PathProgramCache]: Analyzing trace with hash 889513877, now seen corresponding path program 1 times [2022-11-20 09:28:10,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:10,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145562156] [2022-11-20 09:28:10,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:10,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:10,097 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:10,104 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:10,137 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:10,137 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:10,137 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:10,137 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:10,137 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 09:28:10,137 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:10,138 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:10,138 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:10,138 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration2_Loop [2022-11-20 09:28:10,138 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:10,138 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:10,139 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:10,146 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:10,152 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:10,198 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:10,198 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 09:28:10,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:10,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:10,199 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:10,204 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:10,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:10,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 09:28:10,232 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:28:10,232 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: [] [2022-11-20 09:28:10,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:10,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:10,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:10,241 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:10,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 09:28:10,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:10,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:10,262 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:28:10,263 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: [] [2022-11-20 09:28:10,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:10,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:10,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:10,267 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:10,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 09:28:10,271 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:10,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:10,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-11-20 09:28:10,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:10,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:10,289 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:10,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 09:28:10,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 09:28:10,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:10,463 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 09:28:10,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-11-20 09:28:10,466 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:10,467 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:10,467 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:10,467 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:10,467 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 09:28:10,467 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:10,467 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:10,467 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:10,467 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration2_Loop [2022-11-20 09:28:10,467 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:10,467 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:10,469 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:10,482 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:10,488 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:10,538 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:10,538 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 09:28:10,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:10,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:10,543 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:10,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:10,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:10,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:10,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:10,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:10,568 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:10,569 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:10,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:10,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 09:28:10,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:10,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-11-20 09:28:10,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:10,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:10,628 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:10,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:10,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 09:28:10,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:10,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:10,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:10,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:10,668 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:10,668 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:10,692 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:10,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:10,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:10,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:10,700 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:10,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:10,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:10,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:10,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:10,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:10,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:10,721 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:10,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:10,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 09:28:10,727 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 09:28:10,732 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-20 09:28:10,732 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 09:28:10,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:10,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:10,733 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:10,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-20 09:28:10,741 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 09:28:10,742 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 09:28:10,742 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 09:28:10,742 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~N~0#1, ULTIMATE.start_main_~k~0#1) = 1*ULTIMATE.start_main_~N~0#1 - 1*ULTIMATE.start_main_~k~0#1 Supporting invariants [] [2022-11-20 09:28:10,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:10,752 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 09:28:10,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:10,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:10,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:10,790 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:10,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:10,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:10,791 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-20 09:28:10,791 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 10 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,808 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 10. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 44 transitions. Complement of second has 6 states. [2022-11-20 09:28:10,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 09:28:10,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2022-11-20 09:28:10,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 5 letters. Loop has 1 letters. [2022-11-20 09:28:10,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:10,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 6 letters. Loop has 1 letters. [2022-11-20 09:28:10,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:10,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 5 letters. Loop has 2 letters. [2022-11-20 09:28:10,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:10,811 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 44 transitions. [2022-11-20 09:28:10,812 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-20 09:28:10,813 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 19 states and 28 transitions. [2022-11-20 09:28:10,813 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-20 09:28:10,813 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-11-20 09:28:10,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 28 transitions. [2022-11-20 09:28:10,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:28:10,814 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 28 transitions. [2022-11-20 09:28:10,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 28 transitions. [2022-11-20 09:28:10,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-20 09:28:10,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 18 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 28 transitions. [2022-11-20 09:28:10,817 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 28 transitions. [2022-11-20 09:28:10,817 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2022-11-20 09:28:10,817 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 09:28:10,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 28 transitions. [2022-11-20 09:28:10,818 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-20 09:28:10,818 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:28:10,818 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:28:10,819 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:10,819 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 09:28:10,819 INFO L748 eck$LassoCheckResult]: Stem: 185#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 186#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 191#L21 assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0; 192#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 190#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 197#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 196#L28-3 main_~i~0#1 := main_~k~0#1; 180#L25-2 [2022-11-20 09:28:10,820 INFO L750 eck$LassoCheckResult]: Loop: 180#L25-2 assume !(main_~j~0#1 < main_~m~0#1); 181#L25-3 main_~i~0#1 := 1 + main_~i~0#1; 198#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 180#L25-2 [2022-11-20 09:28:10,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:10,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1805126385, now seen corresponding path program 1 times [2022-11-20 09:28:10,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:10,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041724998] [2022-11-20 09:28:10,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:10,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:10,830 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:10,837 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:10,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:10,838 INFO L85 PathProgramCache]: Analyzing trace with hash 51226, now seen corresponding path program 2 times [2022-11-20 09:28:10,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:10,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285469276] [2022-11-20 09:28:10,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:10,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:10,844 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:10,848 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:10,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:10,849 INFO L85 PathProgramCache]: Analyzing trace with hash -765356246, now seen corresponding path program 1 times [2022-11-20 09:28:10,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:10,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604065445] [2022-11-20 09:28:10,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:10,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:10,861 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:10,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:10,911 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:10,911 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:10,911 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:10,911 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:10,911 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 09:28:10,912 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:10,912 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:10,913 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:10,913 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration3_Loop [2022-11-20 09:28:10,913 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:10,913 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:10,915 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:10,921 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:10,925 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:10,933 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:10,996 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:10,997 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 09:28:10,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:10,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:10,999 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:11,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:11,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:11,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-20 09:28:11,035 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:28:11,035 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=0, ULTIMATE.start_main_~m~0#1=0} Honda state: {ULTIMATE.start_main_~j~0#1=0, ULTIMATE.start_main_~m~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 09:28:11,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:11,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:11,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:11,044 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:11,051 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:11,051 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:11,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-20 09:28:11,085 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:28:11,085 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 09:28:11,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:11,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:11,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:11,096 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:11,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:11,108 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:11,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-20 09:28:11,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:11,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:11,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:11,140 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:11,148 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 09:28:11,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:11,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-20 09:28:11,442 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 09:28:11,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:11,445 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:11,445 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:11,445 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:11,445 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:11,446 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 09:28:11,446 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:11,446 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:11,446 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:11,446 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration3_Loop [2022-11-20 09:28:11,446 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:11,446 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:11,447 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:11,454 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:11,461 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:11,465 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:11,517 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:11,518 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 09:28:11,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:11,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:11,519 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:11,532 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:11,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:11,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:11,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:11,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:11,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:11,546 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:11,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:11,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-20 09:28:11,558 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:11,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:11,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:11,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:11,568 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:11,584 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:11,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:11,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:11,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:11,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:11,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:11,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:11,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:11,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-20 09:28:11,614 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 09:28:11,620 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 09:28:11,620 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 09:28:11,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:11,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:11,621 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:11,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-20 09:28:11,630 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 09:28:11,631 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 09:28:11,631 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 09:28:11,631 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-20 09:28:11,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:11,636 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 09:28:11,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:11,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:11,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:11,675 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:11,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:11,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:11,708 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 09:28:11,708 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:11,734 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 28 transitions. cyclomatic complexity: 13. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 52 transitions. Complement of second has 8 states. [2022-11-20 09:28:11,735 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 [2022-11-20 09:28:11,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:11,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2022-11-20 09:28:11,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-20 09:28:11,736 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:11,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-20 09:28:11,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:11,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-20 09:28:11,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:11,737 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 52 transitions. [2022-11-20 09:28:11,738 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-20 09:28:11,739 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 23 states and 35 transitions. [2022-11-20 09:28:11,739 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-11-20 09:28:11,739 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-11-20 09:28:11,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 35 transitions. [2022-11-20 09:28:11,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:28:11,740 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 35 transitions. [2022-11-20 09:28:11,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 35 transitions. [2022-11-20 09:28:11,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2022-11-20 09:28:11,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 20 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:11,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 32 transitions. [2022-11-20 09:28:11,742 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 32 transitions. [2022-11-20 09:28:11,742 INFO L428 stractBuchiCegarLoop]: Abstraction has 21 states and 32 transitions. [2022-11-20 09:28:11,742 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 09:28:11,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 32 transitions. [2022-11-20 09:28:11,743 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-20 09:28:11,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:28:11,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:28:11,744 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:11,744 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-20 09:28:11,744 INFO L748 eck$LassoCheckResult]: Stem: 289#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 290#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 294#L21 assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0; 295#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 301#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 300#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 299#L28-3 main_~i~0#1 := main_~k~0#1; 285#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 287#L28-2 [2022-11-20 09:28:11,744 INFO L750 eck$LassoCheckResult]: Loop: 287#L28-2 assume !!(main_~k~0#1 < main_~N~0#1 - 1);main_~k~0#1 := 1 + main_~k~0#1; 287#L28-2 [2022-11-20 09:28:11,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:11,745 INFO L85 PathProgramCache]: Analyzing trace with hash 124343110, now seen corresponding path program 2 times [2022-11-20 09:28:11,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:11,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240504206] [2022-11-20 09:28:11,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:11,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:11,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:11,760 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:11,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:11,761 INFO L85 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 2 times [2022-11-20 09:28:11,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:11,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462841004] [2022-11-20 09:28:11,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:11,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:11,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:11,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:11,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:11,768 INFO L85 PathProgramCache]: Analyzing trace with hash -440330854, now seen corresponding path program 1 times [2022-11-20 09:28:11,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:11,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606620219] [2022-11-20 09:28:11,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:11,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:11,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:11,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:11,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606620219] [2022-11-20 09:28:11,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606620219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:11,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:11,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:28:11,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139403314] [2022-11-20 09:28:11,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:11,862 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:11,862 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:11,862 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:11,862 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:11,863 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 09:28:11,863 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:11,863 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:11,863 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:11,863 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration4_Loop [2022-11-20 09:28:11,863 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:11,863 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:11,864 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:11,867 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:11,874 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:11,907 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:11,908 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 09:28:11,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:11,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:11,909 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:11,918 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:11,919 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:11,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-20 09:28:11,943 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:28:11,943 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 09:28:11,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:11,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:11,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:11,953 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:11,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:11,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:11,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-20 09:28:11,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:11,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:11,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:12,000 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:12,004 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 09:28:12,004 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:12,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-20 09:28:12,155 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 09:28:12,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:12,158 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:12,159 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:12,159 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:12,159 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:12,159 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 09:28:12,159 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:12,159 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:12,159 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:12,159 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration4_Loop [2022-11-20 09:28:12,159 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:12,159 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:12,160 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:12,166 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:12,174 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:12,218 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:12,218 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 09:28:12,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:12,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:12,220 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:12,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-20 09:28:12,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:12,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:12,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:12,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:12,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:12,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:12,245 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:12,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:12,258 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 09:28:12,261 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 09:28:12,262 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-20 09:28:12,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:12,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:12,269 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:12,273 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 09:28:12,273 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 09:28:12,273 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 09:28:12,273 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~N~0#1, ULTIMATE.start_main_~k~0#1) = 1*ULTIMATE.start_main_~N~0#1 - 1*ULTIMATE.start_main_~k~0#1 Supporting invariants [] [2022-11-20 09:28:12,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-20 09:28:12,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:12,283 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 09:28:12,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:12,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,322 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:12,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:12,324 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-20 09:28:12,324 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 32 transitions. cyclomatic complexity: 16 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:12,336 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 32 transitions. cyclomatic complexity: 16. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 39 transitions. Complement of second has 5 states. [2022-11-20 09:28:12,337 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 [2022-11-20 09:28:12,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:12,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2022-11-20 09:28:12,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 8 letters. Loop has 1 letters. [2022-11-20 09:28:12,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:12,339 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 09:28:12,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:12,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,371 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:12,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:12,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:12,372 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-20 09:28:12,373 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 32 transitions. cyclomatic complexity: 16 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:12,383 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 32 transitions. cyclomatic complexity: 16. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 39 transitions. Complement of second has 5 states. [2022-11-20 09:28:12,383 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 [2022-11-20 09:28:12,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:12,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2022-11-20 09:28:12,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 8 letters. Loop has 1 letters. [2022-11-20 09:28:12,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:12,385 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 09:28:12,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:12,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:12,417 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:12,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:12,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:12,419 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-20 09:28:12,419 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 32 transitions. cyclomatic complexity: 16 Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:12,432 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 32 transitions. cyclomatic complexity: 16. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 61 transitions. Complement of second has 5 states. [2022-11-20 09:28:12,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 09:28:12,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:12,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2022-11-20 09:28:12,434 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 8 letters. Loop has 1 letters. [2022-11-20 09:28:12,435 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:12,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 9 letters. Loop has 1 letters. [2022-11-20 09:28:12,435 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:12,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 8 letters. Loop has 2 letters. [2022-11-20 09:28:12,435 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:12,436 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 61 transitions. [2022-11-20 09:28:12,437 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-20 09:28:12,438 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 23 states and 34 transitions. [2022-11-20 09:28:12,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-20 09:28:12,439 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-11-20 09:28:12,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 34 transitions. [2022-11-20 09:28:12,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:28:12,439 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 34 transitions. [2022-11-20 09:28:12,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 34 transitions. [2022-11-20 09:28:12,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2022-11-20 09:28:12,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 20 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:12,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2022-11-20 09:28:12,442 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 30 transitions. [2022-11-20 09:28:12,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:12,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:28:12,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:28:12,446 INFO L87 Difference]: Start difference. First operand 21 states and 30 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:12,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:12,478 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2022-11-20 09:28:12,478 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2022-11-20 09:28:12,479 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 09:28:12,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 27 transitions. [2022-11-20 09:28:12,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-11-20 09:28:12,479 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-11-20 09:28:12,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2022-11-20 09:28:12,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:28:12,480 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 27 transitions. [2022-11-20 09:28:12,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2022-11-20 09:28:12,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-20 09:28:12,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.35) internal successors, (27), 19 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:12,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2022-11-20 09:28:12,482 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 27 transitions. [2022-11-20 09:28:12,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:28:12,483 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2022-11-20 09:28:12,483 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-20 09:28:12,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2022-11-20 09:28:12,484 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 09:28:12,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:28:12,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:28:12,485 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:12,485 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 09:28:12,485 INFO L748 eck$LassoCheckResult]: Stem: 554#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 555#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 559#L21 assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0; 560#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 566#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 565#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 564#L28-3 main_~i~0#1 := main_~k~0#1; 568#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 551#L28-2 [2022-11-20 09:28:12,485 INFO L750 eck$LassoCheckResult]: Loop: 551#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 562#L28-3 main_~i~0#1 := main_~k~0#1; 549#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 551#L28-2 [2022-11-20 09:28:12,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:12,486 INFO L85 PathProgramCache]: Analyzing trace with hash 124343110, now seen corresponding path program 3 times [2022-11-20 09:28:12,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:12,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127184153] [2022-11-20 09:28:12,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:12,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:12,493 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:12,498 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:12,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:12,499 INFO L85 PathProgramCache]: Analyzing trace with hash 59760, now seen corresponding path program 1 times [2022-11-20 09:28:12,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:12,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456264586] [2022-11-20 09:28:12,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:12,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:12,503 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:12,505 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:12,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:12,506 INFO L85 PathProgramCache]: Analyzing trace with hash 2043810827, now seen corresponding path program 4 times [2022-11-20 09:28:12,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:12,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082537595] [2022-11-20 09:28:12,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:12,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:12,513 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:12,520 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:12,549 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:12,549 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:12,549 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:12,549 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:12,549 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 09:28:12,550 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:12,550 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:12,550 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:12,550 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration5_Loop [2022-11-20 09:28:12,550 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:12,550 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:12,551 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:12,558 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:12,561 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:12,564 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:12,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:12,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:12,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:12,660 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:12,660 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 09:28:12,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:12,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:12,663 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:12,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:12,668 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:12,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-20 09:28:12,699 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:28:12,699 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0#1=0, ULTIMATE.start_main_~k~0#1=0, ULTIMATE.start_main_~N~0#1=1} Honda state: {ULTIMATE.start_main_~i~0#1=0, ULTIMATE.start_main_~k~0#1=0, ULTIMATE.start_main_~N~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 09:28:12,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:12,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:12,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:12,708 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:12,716 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:12,716 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:12,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-20 09:28:12,742 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:28:12,742 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 09:28:12,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:12,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:12,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:12,756 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:12,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:12,760 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:12,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-20 09:28:12,782 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:28:12,782 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 09:28:12,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:12,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:12,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:12,791 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:12,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:12,799 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:12,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-20 09:28:12,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:12,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:12,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:12,836 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:12,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 09:28:12,841 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:12,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-20 09:28:12,995 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 09:28:12,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:12,998 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:12,998 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:12,998 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:12,998 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:12,998 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 09:28:12,998 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:12,998 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:12,998 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:12,998 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration5_Loop [2022-11-20 09:28:12,999 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:12,999 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:13,000 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:13,013 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:13,020 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:13,024 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:13,083 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:13,083 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 09:28:13,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:13,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:13,085 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:13,089 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:13,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-20 09:28:13,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:13,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:13,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:13,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:13,103 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:13,104 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:13,122 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:13,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:13,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:13,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:13,127 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:13,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:13,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:13,143 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:13,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:13,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:13,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:13,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:13,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:13,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-20 09:28:13,162 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:13,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:13,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:13,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:13,171 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:13,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:13,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:13,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:13,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:13,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:13,194 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:13,194 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:13,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-20 09:28:13,210 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:13,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:13,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:13,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:13,219 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:13,224 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:13,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:13,236 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:13,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:13,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:13,236 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:13,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-20 09:28:13,239 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:13,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:13,262 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 09:28:13,266 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 09:28:13,266 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-20 09:28:13,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:13,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:13,268 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:13,272 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 09:28:13,273 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 09:28:13,273 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 09:28:13,273 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2022-11-20 09:28:13,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-20 09:28:13,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:13,277 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 09:28:13,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:13,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:13,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:13,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:13,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:13,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:13,328 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-20 09:28:13,328 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:13,338 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 49 transitions. Complement of second has 5 states. [2022-11-20 09:28:13,338 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 [2022-11-20 09:28:13,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:13,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2022-11-20 09:28:13,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 8 letters. Loop has 3 letters. [2022-11-20 09:28:13,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:13,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 3 letters. [2022-11-20 09:28:13,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:13,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 8 letters. Loop has 6 letters. [2022-11-20 09:28:13,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:13,341 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 49 transitions. [2022-11-20 09:28:13,342 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 09:28:13,343 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 34 states and 45 transitions. [2022-11-20 09:28:13,343 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-11-20 09:28:13,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-11-20 09:28:13,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 45 transitions. [2022-11-20 09:28:13,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:28:13,344 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34 states and 45 transitions. [2022-11-20 09:28:13,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 45 transitions. [2022-11-20 09:28:13,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 26. [2022-11-20 09:28:13,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:13,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2022-11-20 09:28:13,346 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 36 transitions. [2022-11-20 09:28:13,347 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 36 transitions. [2022-11-20 09:28:13,347 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-20 09:28:13,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 36 transitions. [2022-11-20 09:28:13,348 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 09:28:13,348 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:28:13,349 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:28:13,349 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:13,350 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 09:28:13,350 INFO L748 eck$LassoCheckResult]: Stem: 663#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 664#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 669#L21 assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0; 665#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 666#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 679#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 673#L28-3 main_~i~0#1 := main_~k~0#1; 659#L25-2 assume !(main_~j~0#1 < main_~m~0#1); 660#L25-3 main_~i~0#1 := 1 + main_~i~0#1; 672#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 681#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 675#L28-2 [2022-11-20 09:28:13,350 INFO L750 eck$LassoCheckResult]: Loop: 675#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 676#L28-3 main_~i~0#1 := main_~k~0#1; 680#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 675#L28-2 [2022-11-20 09:28:13,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:13,351 INFO L85 PathProgramCache]: Analyzing trace with hash 2043760173, now seen corresponding path program 2 times [2022-11-20 09:28:13,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:13,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315815044] [2022-11-20 09:28:13,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:13,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:13,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:13,374 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:13,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:13,375 INFO L85 PathProgramCache]: Analyzing trace with hash 59760, now seen corresponding path program 2 times [2022-11-20 09:28:13,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:13,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810626819] [2022-11-20 09:28:13,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:13,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:13,382 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:13,402 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:13,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:13,403 INFO L85 PathProgramCache]: Analyzing trace with hash 202955716, now seen corresponding path program 3 times [2022-11-20 09:28:13,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:13,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438972519] [2022-11-20 09:28:13,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:13,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:13,498 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:13,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:13,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438972519] [2022-11-20 09:28:13,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438972519] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:28:13,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646703524] [2022-11-20 09:28:13,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 09:28:13,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:28:13,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:13,501 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:28:13,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-11-20 09:28:13,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-20 09:28:13,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 09:28:13,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 09:28:13,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:13,595 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:13,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:28:13,635 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:13,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646703524] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:28:13,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:28:13,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2022-11-20 09:28:13,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836978016] [2022-11-20 09:28:13,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:28:13,664 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:13,664 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:13,664 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:13,664 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:13,665 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 09:28:13,665 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:13,665 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:13,665 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:13,665 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration6_Loop [2022-11-20 09:28:13,665 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:13,665 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:13,666 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:13,669 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:13,672 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:13,677 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:13,736 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:13,736 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 09:28:13,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:13,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:13,738 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:13,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-20 09:28:13,745 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:13,745 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:13,770 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:28:13,771 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 09:28:13,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:13,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:13,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:13,778 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:13,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:13,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:13,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-20 09:28:13,814 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:28:13,815 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 09:28:13,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:13,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:13,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:13,824 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:13,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:13,831 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:13,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-20 09:28:13,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:13,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:13,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:13,876 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:13,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 09:28:13,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:13,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-11-20 09:28:14,025 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 09:28:14,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-11-20 09:28:14,029 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:14,029 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:14,029 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:14,029 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:14,029 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 09:28:14,029 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:14,029 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:14,029 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:14,029 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration6_Loop [2022-11-20 09:28:14,029 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:14,029 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:14,030 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:14,034 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:14,041 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:14,045 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:14,111 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:14,112 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 09:28:14,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:14,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:14,113 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:14,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:14,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:14,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:14,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:14,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:14,134 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:14,134 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:14,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-11-20 09:28:14,150 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:14,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:14,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:14,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:14,156 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:14,163 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:14,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:14,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:14,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:14,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:14,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:14,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:14,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:14,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-11-20 09:28:14,198 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 09:28:14,201 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 09:28:14,201 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-20 09:28:14,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:14,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:14,203 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:14,211 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 09:28:14,211 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 09:28:14,211 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 09:28:14,211 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2022-11-20 09:28:14,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-11-20 09:28:14,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:14,215 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 09:28:14,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:14,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:14,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:14,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:14,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:14,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:14,267 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-20 09:28:14,267 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 36 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:14,280 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 36 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 63 transitions. Complement of second has 5 states. [2022-11-20 09:28:14,281 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 [2022-11-20 09:28:14,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:14,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2022-11-20 09:28:14,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 3 letters. [2022-11-20 09:28:14,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:14,283 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 09:28:14,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:14,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:14,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:14,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:14,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:14,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:14,330 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-20 09:28:14,330 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 36 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:14,345 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 36 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 63 transitions. Complement of second has 5 states. [2022-11-20 09:28:14,345 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 [2022-11-20 09:28:14,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:14,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2022-11-20 09:28:14,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 3 letters. [2022-11-20 09:28:14,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:14,346 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 09:28:14,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:14,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:14,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:14,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:14,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:14,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:14,397 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-20 09:28:14,398 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 36 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:14,407 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 36 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 50 states and 70 transitions. Complement of second has 4 states. [2022-11-20 09:28:14,408 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 [2022-11-20 09:28:14,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:14,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2022-11-20 09:28:14,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 11 letters. Loop has 3 letters. [2022-11-20 09:28:14,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:14,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 14 letters. Loop has 3 letters. [2022-11-20 09:28:14,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:14,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 19 transitions. Stem has 11 letters. Loop has 6 letters. [2022-11-20 09:28:14,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:14,410 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 70 transitions. [2022-11-20 09:28:14,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2022-11-20 09:28:14,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 36 states and 49 transitions. [2022-11-20 09:28:14,412 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-11-20 09:28:14,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2022-11-20 09:28:14,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 49 transitions. [2022-11-20 09:28:14,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:28:14,413 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 49 transitions. [2022-11-20 09:28:14,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 49 transitions. [2022-11-20 09:28:14,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 25. [2022-11-20 09:28:14,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.44) internal successors, (36), 24 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:14,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 36 transitions. [2022-11-20 09:28:14,415 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 36 transitions. [2022-11-20 09:28:14,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:14,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 09:28:14,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:28:14,416 INFO L87 Difference]: Start difference. First operand 25 states and 36 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:14,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:14,505 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2022-11-20 09:28:14,505 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 63 transitions. [2022-11-20 09:28:14,506 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 20 [2022-11-20 09:28:14,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 39 states and 48 transitions. [2022-11-20 09:28:14,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2022-11-20 09:28:14,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2022-11-20 09:28:14,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 48 transitions. [2022-11-20 09:28:14,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:28:14,507 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 48 transitions. [2022-11-20 09:28:14,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 48 transitions. [2022-11-20 09:28:14,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2022-11-20 09:28:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:14,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2022-11-20 09:28:14,509 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 40 transitions. [2022-11-20 09:28:14,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 09:28:14,510 INFO L428 stractBuchiCegarLoop]: Abstraction has 31 states and 40 transitions. [2022-11-20 09:28:14,510 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-20 09:28:14,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 40 transitions. [2022-11-20 09:28:14,511 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 18 [2022-11-20 09:28:14,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:28:14,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:28:14,512 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-20 09:28:14,512 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1] [2022-11-20 09:28:14,512 INFO L748 eck$LassoCheckResult]: Stem: 1154#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1155#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1158#L21 assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0; 1159#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 1171#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 1168#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 1165#L28-3 main_~i~0#1 := main_~k~0#1; 1152#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 1153#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 1167#L28-3 [2022-11-20 09:28:14,512 INFO L750 eck$LassoCheckResult]: Loop: 1167#L28-3 main_~i~0#1 := main_~k~0#1; 1177#L25-2 assume !(main_~j~0#1 < main_~m~0#1); 1176#L25-3 main_~i~0#1 := 1 + main_~i~0#1; 1175#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 1173#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 1166#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 1165#L28-3 main_~i~0#1 := main_~k~0#1; 1152#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 1153#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 1167#L28-3 [2022-11-20 09:28:14,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:14,513 INFO L85 PathProgramCache]: Analyzing trace with hash -440330856, now seen corresponding path program 5 times [2022-11-20 09:28:14,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:14,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814622938] [2022-11-20 09:28:14,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:14,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:14,519 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:14,523 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:14,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:14,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1332666324, now seen corresponding path program 1 times [2022-11-20 09:28:14,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:14,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423074470] [2022-11-20 09:28:14,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:14,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:14,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2022-11-20 09:28:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:14,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:14,554 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:14,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:14,555 INFO L85 PathProgramCache]: Analyzing trace with hash -779525003, now seen corresponding path program 4 times [2022-11-20 09:28:14,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:14,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443458874] [2022-11-20 09:28:14,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:14,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:14,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:14,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:14,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:14,661 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:14,661 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:14,661 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:14,662 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:14,662 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 09:28:14,662 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:14,662 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:14,662 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:14,662 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration7_Loop [2022-11-20 09:28:14,662 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:14,663 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:14,664 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:14,667 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:14,670 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:14,679 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:14,739 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:14,740 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 09:28:14,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:14,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:14,743 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:14,751 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:14,751 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:14,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-11-20 09:28:14,774 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:28:14,775 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 09:28:14,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:14,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:14,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:14,780 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:14,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-11-20 09:28:14,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:14,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:14,800 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:28:14,800 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_13=0} Honda state: {v_rep~unnamed0~0~false_13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 09:28:14,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2022-11-20 09:28:14,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:14,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:14,804 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:14,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-11-20 09:28:14,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:14,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:14,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:14,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:14,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:14,855 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:14,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 09:28:14,863 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:14,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-11-20 09:28:26,908 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2022-11-20 09:28:26,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2022-11-20 09:28:26,912 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:26,912 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:26,912 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:26,912 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:26,912 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 09:28:26,912 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:26,912 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:26,912 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:26,913 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration7_Loop [2022-11-20 09:28:26,913 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:26,913 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:26,914 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:26,921 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:26,925 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:26,935 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:27,008 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:27,009 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 09:28:27,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:27,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:27,010 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:27,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:27,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:27,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:27,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:27,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:27,030 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:27,030 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:27,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:27,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-11-20 09:28:27,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:27,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:27,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:27,072 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:27,079 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:27,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:27,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:27,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:27,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:27,094 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:27,094 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:27,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-11-20 09:28:27,114 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:27,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:27,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:27,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:27,151 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:27,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-11-20 09:28:27,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:27,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:27,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:27,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:27,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:27,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:27,194 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:27,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:27,204 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 09:28:27,209 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 09:28:27,209 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-20 09:28:27,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:27,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:27,210 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:27,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-11-20 09:28:27,216 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 09:28:27,217 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 09:28:27,217 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 09:28:27,217 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~k~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2022-11-20 09:28:27,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:27,221 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 09:28:27,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:27,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:27,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 09:28:27,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:27,361 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 09:28:27,362 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2022-11-20 09:28:27,362 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 40 transitions. cyclomatic complexity: 14 Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:27,486 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 40 transitions. cyclomatic complexity: 14. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 58 states and 73 transitions. Complement of second has 12 states. [2022-11-20 09:28:27,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-11-20 09:28:27,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:27,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 20 transitions. [2022-11-20 09:28:27,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 9 letters. Loop has 9 letters. [2022-11-20 09:28:27,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:27,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 18 letters. Loop has 9 letters. [2022-11-20 09:28:27,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:27,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 9 letters. Loop has 18 letters. [2022-11-20 09:28:27,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:27,490 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 73 transitions. [2022-11-20 09:28:27,490 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 09:28:27,491 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 51 states and 64 transitions. [2022-11-20 09:28:27,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-11-20 09:28:27,491 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-11-20 09:28:27,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 64 transitions. [2022-11-20 09:28:27,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:28:27,491 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 64 transitions. [2022-11-20 09:28:27,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 64 transitions. [2022-11-20 09:28:27,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 36. [2022-11-20 09:28:27,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 35 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:27,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2022-11-20 09:28:27,499 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 49 transitions. [2022-11-20 09:28:27,500 INFO L428 stractBuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2022-11-20 09:28:27,500 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-20 09:28:27,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 49 transitions. [2022-11-20 09:28:27,500 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 09:28:27,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:28:27,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:28:27,501 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2022-11-20 09:28:27,501 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 09:28:27,501 INFO L748 eck$LassoCheckResult]: Stem: 1336#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1337#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~m~0#1, main_~n~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~N~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~m~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~N~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1340#L21 assume (0 <= main_~n~0#1 && 0 <= main_~m~0#1) && 0 <= main_~N~0#1;main_~i~0#1 := 0; 1341#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 1351#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 1346#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 1349#L28-3 main_~i~0#1 := main_~k~0#1; 1362#L25-2 assume !!(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 1 + main_~j~0#1;main_~k~0#1 := main_~i~0#1; 1357#L28-2 assume !(main_~k~0#1 < main_~N~0#1 - 1); 1343#L28-3 main_~i~0#1 := main_~k~0#1; 1332#L25-2 [2022-11-20 09:28:27,501 INFO L750 eck$LassoCheckResult]: Loop: 1332#L25-2 assume !(main_~j~0#1 < main_~m~0#1); 1333#L25-3 main_~i~0#1 := 1 + main_~i~0#1; 1338#L23-2 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 1332#L25-2 [2022-11-20 09:28:27,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:27,502 INFO L85 PathProgramCache]: Analyzing trace with hash -765354612, now seen corresponding path program 6 times [2022-11-20 09:28:27,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:27,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607007729] [2022-11-20 09:28:27,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:27,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:27,517 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:27,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:27,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:27,528 INFO L85 PathProgramCache]: Analyzing trace with hash 51226, now seen corresponding path program 3 times [2022-11-20 09:28:27,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:27,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105506690] [2022-11-20 09:28:27,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:27,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:27,537 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:27,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:27,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:27,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1302149807, now seen corresponding path program 5 times [2022-11-20 09:28:27,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:27,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030504615] [2022-11-20 09:28:27,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:27,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:27,556 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:27,561 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:27,584 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:27,584 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:27,585 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:27,585 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:27,585 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 09:28:27,585 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:27,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:27,585 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:27,585 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration8_Loop [2022-11-20 09:28:27,585 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:27,585 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:27,586 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:27,589 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:27,594 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:27,596 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:27,645 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:27,645 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 09:28:27,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:27,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:27,646 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:27,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:27,651 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:27,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-11-20 09:28:27,686 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:28:27,686 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 09:28:27,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:27,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:27,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:27,691 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:27,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:27,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:27,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-11-20 09:28:27,723 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:28:27,723 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=0, ULTIMATE.start_main_~m~0#1=0} Honda state: {ULTIMATE.start_main_~j~0#1=0, ULTIMATE.start_main_~m~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 09:28:27,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:27,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:27,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:27,727 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:27,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:27,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:27,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-11-20 09:28:27,754 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 09:28:27,755 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 09:28:27,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:27,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:27,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:27,759 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:27,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 09:28:27,763 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:27,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-11-20 09:28:27,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:27,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:27,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:27,790 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:27,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 09:28:27,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 09:28:27,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-11-20 09:28:28,090 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 09:28:28,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:28,093 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:28,093 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:28,094 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:28,094 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:28,094 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 09:28:28,094 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:28,094 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:28,094 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:28,094 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-nestedLoop-1.c_Iteration8_Loop [2022-11-20 09:28:28,094 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:28,094 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:28,095 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:28,101 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:28,106 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:28,112 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:28,165 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:28,165 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 09:28:28,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:28,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:28,166 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:28,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:28,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:28,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:28,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:28,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:28,184 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:28,185 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:28,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-11-20 09:28:28,202 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:28,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:28,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:28,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:28,206 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:28,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-11-20 09:28:28,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:28,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:28,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:28,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:28,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:28,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:28,223 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:28,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:28,250 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:28,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:28,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:28,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:28,255 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:28,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:28,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:28,271 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:28,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:28,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:28,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:28,272 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:28,272 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:28,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2022-11-20 09:28:28,286 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 09:28:28,302 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-20 09:28:28,302 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 09:28:28,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:28,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:28,307 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:28,311 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 09:28:28,311 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 09:28:28,311 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 09:28:28,312 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2022-11-20 09:28:28,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2022-11-20 09:28:28,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:28,315 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 09:28:28,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:28,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:28,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:28,352 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:28,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:28,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:28,364 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 09:28:28,365 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:28,383 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 60 states and 77 transitions. Complement of second has 7 states. [2022-11-20 09:28:28,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 09:28:28,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:28,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2022-11-20 09:28:28,385 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-20 09:28:28,386 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:28,386 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 09:28:28,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:28,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:28,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:28,424 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:28,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:28,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:28,437 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 09:28:28,437 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:28,456 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 60 states and 77 transitions. Complement of second has 7 states. [2022-11-20 09:28:28,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 09:28:28,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:28,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2022-11-20 09:28:28,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-20 09:28:28,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:28,458 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 09:28:28,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:28,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:28,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:28,492 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:28,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:28,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:28,503 INFO L141 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 [2022-11-20 09:28:28,504 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:28,524 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 55 states and 74 transitions. Complement of second has 6 states. [2022-11-20 09:28:28,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 09:28:28,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:28,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-20 09:28:28,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-20 09:28:28,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:28,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-20 09:28:28,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:28,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 6 letters. [2022-11-20 09:28:28,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:28,527 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 74 transitions. [2022-11-20 09:28:28,528 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 09:28:28,528 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 0 states and 0 transitions. [2022-11-20 09:28:28,528 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 09:28:28,528 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 09:28:28,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 09:28:28,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:28,529 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:28:28,529 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:28:28,529 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:28:28,529 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-11-20 09:28:28,529 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-20 09:28:28,529 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 09:28:28,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-20 09:28:28,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 09:28:28 BoogieIcfgContainer [2022-11-20 09:28:28,537 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 09:28:28,537 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:28:28,537 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:28:28,537 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:28:28,538 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:08" (3/4) ... [2022-11-20 09:28:28,540 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 09:28:28,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:28:28,541 INFO L158 Benchmark]: Toolchain (without parser) took 20522.18ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 129.5MB in the beginning and 71.4MB in the end (delta: 58.1MB). Peak memory consumption was 92.7MB. Max. memory is 16.1GB. [2022-11-20 09:28:28,541 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:28:28,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.17ms. Allocated memory is still 161.5MB. Free memory was 128.6MB in the beginning and 127.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:28:28,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.15ms. Allocated memory is still 161.5MB. Free memory was 127.3MB in the beginning and 125.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:28:28,542 INFO L158 Benchmark]: Boogie Preprocessor took 27.56ms. Allocated memory is still 161.5MB. Free memory was 125.3MB in the beginning and 124.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:28:28,543 INFO L158 Benchmark]: RCFGBuilder took 241.64ms. Allocated memory is still 161.5MB. Free memory was 124.3MB in the beginning and 114.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 09:28:28,543 INFO L158 Benchmark]: BuchiAutomizer took 19938.48ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 114.9MB in the beginning and 71.4MB in the end (delta: 43.5MB). Peak memory consumption was 80.1MB. Max. memory is 16.1GB. [2022-11-20 09:28:28,543 INFO L158 Benchmark]: Witness Printer took 3.57ms. Allocated memory is still 195.0MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:28:28,545 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.17ms. Allocated memory is still 161.5MB. Free memory was 128.6MB in the beginning and 127.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.15ms. Allocated memory is still 161.5MB. Free memory was 127.3MB in the beginning and 125.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.56ms. Allocated memory is still 161.5MB. Free memory was 125.3MB in the beginning and 124.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 241.64ms. Allocated memory is still 161.5MB. Free memory was 124.3MB in the beginning and 114.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 19938.48ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 114.9MB in the beginning and 71.4MB in the end (delta: 43.5MB). Peak memory consumption was 80.1MB. Max. memory is 16.1GB. * Witness Printer took 3.57ms. Allocated memory is still 195.0MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (2 trivial, 5 deterministic, 3 nondeterministic). One deterministic module has affine ranking function -1 * i + n and consists of 5 locations. One deterministic module has affine ranking function N + -1 * k and consists of 4 locations. One deterministic module has affine ranking function -1 * i + n and consists of 5 locations. One deterministic module has affine ranking function -1 * j + m and consists of 3 locations. One deterministic module has affine ranking function n + -1 * k and consists of 7 locations. One nondeterministic module has affine ranking function N + -1 * k and consists of 4 locations. One nondeterministic module has affine ranking function -1 * j + m and consists of 3 locations. One nondeterministic module has affine ranking function -1 * i + n and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 19.8s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 18.3s. Construction of modules took 0.1s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 47 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 4/5 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 223 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 209 mSDsluCounter, 278 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 195 mSDtfsCounter, 159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax169 hnf100 lsp41 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq155 hnf93 smp100 dnf100 smp100 tf111 neg98 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 80ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 14.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-20 09:28:28,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:28,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:28,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2022-11-20 09:28:29,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b99ad64-ae46-4455-b534-bbbf7e174250/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE