./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/subseq-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/subseq-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 332083c9703e7f789c3b57b3574f68dffe1c5555ad9f8a0d56f0eaba0a86f436 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:50:40,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:50:40,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:50:40,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:50:40,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:50:40,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:50:40,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:50:40,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:50:40,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:50:40,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:50:40,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:50:40,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:50:40,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:50:40,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:50:40,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:50:40,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:50:40,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:50:40,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:50:40,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:50:40,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:50:40,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:50:40,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:50:40,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:50:40,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:50:40,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:50:40,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:50:40,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:50:40,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:50:40,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:50:40,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:50:40,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:50:40,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:50:40,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:50:40,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:50:40,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:50:40,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:50:40,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:50:40,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:50:40,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:50:40,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:50:40,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:50:40,985 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 22:50:41,012 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:50:41,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:50:41,012 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:50:41,013 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:50:41,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:50:41,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:50:41,014 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:50:41,015 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 22:50:41,015 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 22:50:41,015 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 22:50:41,015 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 22:50:41,016 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 22:50:41,016 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 22:50:41,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:50:41,016 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:50:41,016 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 22:50:41,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:50:41,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:50:41,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:50:41,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 22:50:41,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 22:50:41,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 22:50:41,018 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:50:41,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:50:41,018 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 22:50:41,019 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:50:41,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 22:50:41,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:50:41,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:50:41,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:50:41,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:50:41,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:50:41,021 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 22:50:41,021 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_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 332083c9703e7f789c3b57b3574f68dffe1c5555ad9f8a0d56f0eaba0a86f436 [2021-10-28 22:50:41,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:50:41,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:50:41,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:50:41,302 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:50:41,303 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:50:41,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/array-memsafety/subseq-alloca-2.i [2021-10-28 22:50:41,381 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/data/c8a775f0e/7c7b280f55b64d80a2edb8097eed76f3/FLAG3c9ce369b [2021-10-28 22:50:41,918 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:50:41,919 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/sv-benchmarks/c/array-memsafety/subseq-alloca-2.i [2021-10-28 22:50:41,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/data/c8a775f0e/7c7b280f55b64d80a2edb8097eed76f3/FLAG3c9ce369b [2021-10-28 22:50:42,227 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/data/c8a775f0e/7c7b280f55b64d80a2edb8097eed76f3 [2021-10-28 22:50:42,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:50:42,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:50:42,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:50:42,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:50:42,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:50:42,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8fe83dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42, skipping insertion in model container [2021-10-28 22:50:42,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:50:42,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:50:42,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:50:42,664 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:50:42,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:50:42,773 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:50:42,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42 WrapperNode [2021-10-28 22:50:42,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:50:42,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:50:42,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:50:42,777 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:50:42,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:50:42,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:50:42,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:50:42,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:50:42,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:50:42,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:50:42,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:50:42,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:50:42,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (1/1) ... [2021-10-28 22:50:42,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:42,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:42,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:42,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 22:50:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 22:50:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 22:50:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:50:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 22:50:43,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:50:43,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:50:43,384 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:50:43,384 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-28 22:50:43,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:50:43 BoogieIcfgContainer [2021-10-28 22:50:43,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:50:43,390 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 22:50:43,391 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 22:50:43,403 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 22:50:43,404 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:50:43,404 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 10:50:42" (1/3) ... [2021-10-28 22:50:43,406 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40f71ddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:50:43, skipping insertion in model container [2021-10-28 22:50:43,406 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:50:43,406 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:42" (2/3) ... [2021-10-28 22:50:43,407 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40f71ddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:50:43, skipping insertion in model container [2021-10-28 22:50:43,407 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:50:43,407 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:50:43" (3/3) ... [2021-10-28 22:50:43,409 INFO L389 chiAutomizerObserver]: Analyzing ICFG subseq-alloca-2.i [2021-10-28 22:50:43,470 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 22:50:43,470 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 22:50:43,471 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 22:50:43,471 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 22:50:43,471 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 22:50:43,471 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 22:50:43,471 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 22:50:43,471 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 22:50:43,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 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) [2021-10-28 22:50:43,520 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 22:50:43,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:43,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:43,528 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 22:50:43,528 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 22:50:43,528 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 22:50:43,529 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 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) [2021-10-28 22:50:43,534 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 22:50:43,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:43,534 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:43,535 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 22:50:43,535 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 22:50:43,543 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 14#L530true assume !(main_~length1~0 < 1); 7#L530-2true assume !(main_~length2~0 < 1); 16#L533-1true call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 8#L539-3true [2021-10-28 22:50:43,543 INFO L793 eck$LassoCheckResult]: Loop: 8#L539-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 19#L539-2true main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 8#L539-3true [2021-10-28 22:50:43,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:43,550 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-10-28 22:50:43,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:43,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855342328] [2021-10-28 22:50:43,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:43,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:43,691 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:43,756 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:43,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:43,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2021-10-28 22:50:43,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:43,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202658176] [2021-10-28 22:50:43,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:43,776 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:43,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:43,787 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:43,808 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:43,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:43,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2021-10-28 22:50:43,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:43,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402386181] [2021-10-28 22:50:43,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:43,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:43,857 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:43,899 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:44,421 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:50:44,421 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:50:44,421 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:50:44,422 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:50:44,422 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:50:44,422 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:44,422 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:50:44,422 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:50:44,422 INFO L133 ssoRankerPreferences]: Filename of dumped script: subseq-alloca-2.i_Iteration1_Lasso [2021-10-28 22:50:44,422 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:50:44,423 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:50:44,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:44,920 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:50:44,927 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:50:44,928 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:44,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:44,939 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:44,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 22:50:44,952 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:44,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:44,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:44,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:44,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:44,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:44,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:44,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:44,984 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:45,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:45,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:45,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:45,015 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:45,020 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:45,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 22:50:45,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:45,028 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:45,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:45,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:45,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:45,029 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:45,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:45,031 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:45,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:45,051 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:45,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:45,056 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:45,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 22:50:45,058 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:45,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:45,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:45,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:45,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:45,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:45,071 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:45,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:45,076 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:45,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-28 22:50:45,099 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:45,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:45,100 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:45,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 22:50:45,112 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:45,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:45,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:45,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:45,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:45,124 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:45,125 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:45,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:45,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:45,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:45,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:45,153 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:45,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 22:50:45,157 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:45,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:45,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:45,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:45,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:45,167 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:45,167 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:45,189 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:45,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:45,209 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:45,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:45,210 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:45,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 22:50:45,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:45,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:45,220 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:45,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:45,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:45,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:45,222 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:45,222 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:45,227 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:45,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:45,250 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:45,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:45,251 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:45,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 22:50:45,254 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:45,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:45,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:45,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:45,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:45,267 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:45,267 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:45,278 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:45,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:45,309 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:45,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:45,310 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:45,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 22:50:45,311 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:45,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:45,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:45,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:45,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:45,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:45,325 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:45,361 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:45,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:45,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:45,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:45,384 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:45,386 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:45,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 22:50:45,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:45,394 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:45,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:45,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:45,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:45,395 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:45,395 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:45,427 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:45,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:45,460 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:45,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:45,461 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:45,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 22:50:45,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:45,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:45,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:45,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:45,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:45,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:45,473 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:45,473 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:45,499 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:45,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:45,539 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:45,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:45,544 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:45,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:45,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 22:50:45,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:45,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:45,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:45,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:45,563 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:45,563 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:45,567 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:45,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:45,586 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:45,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:45,587 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:45,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 22:50:45,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:45,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:45,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:45,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:45,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:45,604 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:45,604 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:45,631 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:45,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:45,654 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:45,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:45,655 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:45,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 22:50:45,657 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:45,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:45,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:45,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:45,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:45,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:45,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:45,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:45,682 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:45,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:45,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:45,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:45,703 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:45,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 22:50:45,704 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:45,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:45,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:45,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:45,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:45,714 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:45,714 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:45,748 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:45,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:45,770 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:45,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:45,771 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:45,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 22:50:45,775 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:45,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:45,782 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:45,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:45,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:45,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:45,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:45,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:45,807 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:45,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:45,836 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:45,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:45,837 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:45,840 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:45,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 22:50:45,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:45,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:45,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:45,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:45,849 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:45,850 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:45,879 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:45,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:45,917 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:45,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:45,920 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:45,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:45,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:45,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:45,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:45,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:45,945 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:45,946 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:45,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 22:50:45,963 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:50:46,049 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2021-10-28 22:50:46,049 INFO L444 ModelExtractionUtils]: 5 out of 22 variables were initially zero. Simplification set additionally 14 variables to zero. [2021-10-28 22:50:46,051 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:46,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:46,060 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:46,127 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:50:46,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 22:50:46,149 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 22:50:46,149 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:50:46,150 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-28 22:50:46,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:46,220 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-10-28 22:50:46,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:46,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 22:50:46,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:46,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 22:50:46,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:46,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:46,358 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 22:50:46,359 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 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) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:46,416 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 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). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 54 states and 79 transitions. Complement of second has 7 states. [2021-10-28 22:50:46,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 22:50:46,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:46,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2021-10-28 22:50:46,421 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 22:50:46,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:46,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-28 22:50:46,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:46,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-28 22:50:46,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:46,423 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 79 transitions. [2021-10-28 22:50:46,427 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 22:50:46,431 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 17 states and 24 transitions. [2021-10-28 22:50:46,432 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-28 22:50:46,432 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-10-28 22:50:46,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2021-10-28 22:50:46,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:50:46,434 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-10-28 22:50:46,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2021-10-28 22:50:46,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-28 22:50:46,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.411764705882353) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:46,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2021-10-28 22:50:46,454 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-10-28 22:50:46,455 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-10-28 22:50:46,455 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 22:50:46,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2021-10-28 22:50:46,456 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 22:50:46,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:46,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:46,456 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:46,456 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 22:50:46,457 INFO L791 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 152#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 162#L530 assume !(main_~length1~0 < 1); 153#L530-2 assume !(main_~length2~0 < 1); 154#L533-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 155#L539-3 assume !(main_~i~0 < main_~length1~0 - 1); 156#L539-4 main_~i~1 := 0; 148#L545-3 [2021-10-28 22:50:46,457 INFO L793 eck$LassoCheckResult]: Loop: 148#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 150#L545-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 148#L545-3 [2021-10-28 22:50:46,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:46,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2021-10-28 22:50:46,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:46,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009622304] [2021-10-28 22:50:46,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:46,458 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:46,469 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:46,482 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:46,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:46,483 INFO L85 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2021-10-28 22:50:46,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:46,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511074890] [2021-10-28 22:50:46,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:46,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:46,489 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:46,496 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:46,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:46,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2021-10-28 22:50:46,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:46,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90833369] [2021-10-28 22:50:46,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:46,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:46,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-10-28 22:50:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:46,571 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:46,603 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:46,926 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:50:46,927 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:50:46,927 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:50:46,927 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:50:46,927 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:50:46,927 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:46,927 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:50:46,927 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:50:46,927 INFO L133 ssoRankerPreferences]: Filename of dumped script: subseq-alloca-2.i_Iteration2_Lasso [2021-10-28 22:50:46,927 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:50:46,927 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:50:46,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:46,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:47,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:47,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:47,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:47,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:47,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:47,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:47,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:47,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:47,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:47,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:47,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:47,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:47,325 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:50:47,325 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:50:47,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:47,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:47,328 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:47,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 22:50:47,335 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:47,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:47,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:47,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:47,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:47,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:47,345 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:47,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:47,359 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:47,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:47,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:47,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:47,396 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:47,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 22:50:47,401 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:47,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:47,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:47,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:47,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:47,413 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:47,413 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:47,435 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:47,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:47,460 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:47,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:47,461 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:47,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 22:50:47,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:47,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:47,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:47,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:47,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:47,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:47,472 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:47,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:47,488 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:47,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:47,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:47,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:47,509 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:47,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 22:50:47,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:47,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:47,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:47,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:47,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:47,525 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:47,525 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:47,547 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:50:47,582 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2021-10-28 22:50:47,582 INFO L444 ModelExtractionUtils]: 7 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-10-28 22:50:47,582 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:47,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:47,587 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:47,592 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:50:47,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 22:50:47,613 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-28 22:50:47,613 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:50:47,614 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1) = -1*ULTIMATE.start_main_~i~1 + 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_1 Supporting invariants [1*ULTIMATE.start_main_~nondetString2~0.offset >= 0] [2021-10-28 22:50:47,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:47,668 INFO L297 tatePredicateManager]: 6 out of 7 supporting invariants were superfluous and have been removed [2021-10-28 22:50:47,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:47,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 22:50:47,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:47,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 22:50:47,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:47,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:47,796 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-28 22:50:47,797 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 2.25) 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) [2021-10-28 22:50:47,849 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 2.25) 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) Result 25 states and 38 transitions. Complement of second has 7 states. [2021-10-28 22:50:47,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 22:50:47,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) 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) [2021-10-28 22:50:47,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2021-10-28 22:50:47,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-28 22:50:47,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:47,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 9 letters. Loop has 2 letters. [2021-10-28 22:50:47,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:47,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 7 letters. Loop has 4 letters. [2021-10-28 22:50:47,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:47,853 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 38 transitions. [2021-10-28 22:50:47,859 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 22:50:47,866 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 18 states and 26 transitions. [2021-10-28 22:50:47,867 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-28 22:50:47,868 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-28 22:50:47,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 26 transitions. [2021-10-28 22:50:47,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:50:47,869 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2021-10-28 22:50:47,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 26 transitions. [2021-10-28 22:50:47,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-28 22:50:47,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 17 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:47,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2021-10-28 22:50:47,873 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2021-10-28 22:50:47,873 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2021-10-28 22:50:47,873 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 22:50:47,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 26 transitions. [2021-10-28 22:50:47,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 22:50:47,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:47,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:47,876 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:47,876 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 22:50:47,877 INFO L791 eck$LassoCheckResult]: Stem: 279#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 280#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 290#L530 assume !(main_~length1~0 < 1); 281#L530-2 assume !(main_~length2~0 < 1); 282#L533-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 283#L539-3 assume !(main_~i~0 < main_~length1~0 - 1); 284#L539-4 main_~i~1 := 0; 275#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 276#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);subseq_#in~s.base, subseq_#in~s.offset, subseq_#in~t.base, subseq_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc subseq_#res;havoc subseq_#t~mem5, subseq_#t~mem6, subseq_#t~post7.base, subseq_#t~post7.offset, subseq_#t~post8.base, subseq_#t~post8.offset, subseq_#t~mem2, subseq_#t~mem3, subseq_#t~short4, subseq_#t~mem9, subseq_~s.base, subseq_~s.offset, subseq_~t.base, subseq_~t.offset, subseq_~ps~0.base, subseq_~ps~0.offset, subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~s.base, subseq_~s.offset := subseq_#in~s.base, subseq_#in~s.offset;subseq_~t.base, subseq_~t.offset := subseq_#in~t.base, subseq_#in~t.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_~s.base, subseq_~s.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_~t.base, subseq_~t.offset; 287#L518-5 [2021-10-28 22:50:47,877 INFO L793 eck$LassoCheckResult]: Loop: 287#L518-5 call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 288#L518-1 assume subseq_#t~short4;call subseq_#t~mem3 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem3; 291#L518-3 assume !!subseq_#t~short4;havoc subseq_#t~mem2;havoc subseq_#t~mem3;havoc subseq_#t~short4;call subseq_#t~mem5 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);call subseq_#t~mem6 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1); 292#L519 assume !(subseq_#t~mem5 == subseq_#t~mem6);havoc subseq_#t~mem5;havoc subseq_#t~mem6; 289#L519-2 subseq_#t~post8.base, subseq_#t~post8.offset := subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_#t~post8.base, 1 + subseq_#t~post8.offset;havoc subseq_#t~post8.base, subseq_#t~post8.offset; 287#L518-5 [2021-10-28 22:50:47,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:47,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2021-10-28 22:50:47,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:47,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045445581] [2021-10-28 22:50:47,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:47,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:47,912 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:47,965 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:47,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:47,965 INFO L85 PathProgramCache]: Analyzing trace with hash 74536249, now seen corresponding path program 1 times [2021-10-28 22:50:47,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:47,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348316631] [2021-10-28 22:50:47,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:47,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:47,982 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:48,003 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:48,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:48,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1034036476, now seen corresponding path program 1 times [2021-10-28 22:50:48,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:48,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931774375] [2021-10-28 22:50:48,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:48,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:48,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:48,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:48,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:50:48,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931774375] [2021-10-28 22:50:48,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931774375] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:50:48,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:50:48,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 22:50:48,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467639070] [2021-10-28 22:50:48,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:50:48,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 22:50:48,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 22:50:48,449 INFO L87 Difference]: Start difference. First operand 18 states and 26 transitions. cyclomatic complexity: 11 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:48,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:50:48,548 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2021-10-28 22:50:48,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 22:50:48,548 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 36 transitions. [2021-10-28 22:50:48,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 22:50:48,551 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 19 states and 25 transitions. [2021-10-28 22:50:48,552 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-28 22:50:48,552 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-28 22:50:48,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2021-10-28 22:50:48,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:50:48,552 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-10-28 22:50:48,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2021-10-28 22:50:48,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-10-28 22:50:48,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:48,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2021-10-28 22:50:48,556 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-10-28 22:50:48,556 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-10-28 22:50:48,556 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 22:50:48,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2021-10-28 22:50:48,559 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 22:50:48,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:48,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:48,560 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:48,560 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 22:50:48,560 INFO L791 eck$LassoCheckResult]: Stem: 343#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 344#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 354#L530 assume !(main_~length1~0 < 1); 345#L530-2 assume !(main_~length2~0 < 1); 346#L533-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 347#L539-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 348#L539-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 349#L539-3 assume !(main_~i~0 < main_~length1~0 - 1); 350#L539-4 main_~i~1 := 0; 339#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 340#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);subseq_#in~s.base, subseq_#in~s.offset, subseq_#in~t.base, subseq_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc subseq_#res;havoc subseq_#t~mem5, subseq_#t~mem6, subseq_#t~post7.base, subseq_#t~post7.offset, subseq_#t~post8.base, subseq_#t~post8.offset, subseq_#t~mem2, subseq_#t~mem3, subseq_#t~short4, subseq_#t~mem9, subseq_~s.base, subseq_~s.offset, subseq_~t.base, subseq_~t.offset, subseq_~ps~0.base, subseq_~ps~0.offset, subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~s.base, subseq_~s.offset := subseq_#in~s.base, subseq_#in~s.offset;subseq_~t.base, subseq_~t.offset := subseq_#in~t.base, subseq_#in~t.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_~s.base, subseq_~s.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_~t.base, subseq_~t.offset; 351#L518-5 [2021-10-28 22:50:48,560 INFO L793 eck$LassoCheckResult]: Loop: 351#L518-5 call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 352#L518-1 assume subseq_#t~short4;call subseq_#t~mem3 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem3; 355#L518-3 assume !!subseq_#t~short4;havoc subseq_#t~mem2;havoc subseq_#t~mem3;havoc subseq_#t~short4;call subseq_#t~mem5 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);call subseq_#t~mem6 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1); 356#L519 assume !(subseq_#t~mem5 == subseq_#t~mem6);havoc subseq_#t~mem5;havoc subseq_#t~mem6; 353#L519-2 subseq_#t~post8.base, subseq_#t~post8.offset := subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_#t~post8.base, 1 + subseq_#t~post8.offset;havoc subseq_#t~post8.base, subseq_#t~post8.offset; 351#L518-5 [2021-10-28 22:50:48,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:48,561 INFO L85 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2021-10-28 22:50:48,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:48,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864022251] [2021-10-28 22:50:48,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:48,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:48,590 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:48,632 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:48,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:48,632 INFO L85 PathProgramCache]: Analyzing trace with hash 74536249, now seen corresponding path program 2 times [2021-10-28 22:50:48,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:48,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348174568] [2021-10-28 22:50:48,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:48,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:48,638 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:48,652 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:48,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:48,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1928298466, now seen corresponding path program 1 times [2021-10-28 22:50:48,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:48,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951018589] [2021-10-28 22:50:48,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:48,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:48,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 22:50:48,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:50:48,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951018589] [2021-10-28 22:50:48,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951018589] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:50:48,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:50:48,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 22:50:48,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443987131] [2021-10-28 22:50:48,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:50:48,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 22:50:48,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-28 22:50:48,936 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. cyclomatic complexity: 9 Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:49,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:50:49,024 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2021-10-28 22:50:49,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 22:50:49,025 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2021-10-28 22:50:49,026 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 22:50:49,026 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 19 states and 24 transitions. [2021-10-28 22:50:49,026 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-28 22:50:49,027 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-28 22:50:49,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2021-10-28 22:50:49,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:50:49,027 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-10-28 22:50:49,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2021-10-28 22:50:49,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-10-28 22:50:49,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:49,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-10-28 22:50:49,029 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-28 22:50:49,029 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-28 22:50:49,029 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 22:50:49,029 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2021-10-28 22:50:49,029 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 22:50:49,029 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:49,029 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:49,030 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:49,030 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 22:50:49,030 INFO L791 eck$LassoCheckResult]: Stem: 403#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 404#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 414#L530 assume !(main_~length1~0 < 1); 405#L530-2 assume !(main_~length2~0 < 1); 406#L533-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 407#L539-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 408#L539-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 409#L539-3 assume !(main_~i~0 < main_~length1~0 - 1); 410#L539-4 main_~i~1 := 0; 399#L545-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 400#L545-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 401#L545-3 assume !(main_~i~1 < main_~length2~0 - 1); 402#L545-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);subseq_#in~s.base, subseq_#in~s.offset, subseq_#in~t.base, subseq_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc subseq_#res;havoc subseq_#t~mem5, subseq_#t~mem6, subseq_#t~post7.base, subseq_#t~post7.offset, subseq_#t~post8.base, subseq_#t~post8.offset, subseq_#t~mem2, subseq_#t~mem3, subseq_#t~short4, subseq_#t~mem9, subseq_~s.base, subseq_~s.offset, subseq_~t.base, subseq_~t.offset, subseq_~ps~0.base, subseq_~ps~0.offset, subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~s.base, subseq_~s.offset := subseq_#in~s.base, subseq_#in~s.offset;subseq_~t.base, subseq_~t.offset := subseq_#in~t.base, subseq_#in~t.offset;subseq_~ps~0.base, subseq_~ps~0.offset := subseq_~s.base, subseq_~s.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_~t.base, subseq_~t.offset; 411#L518-5 [2021-10-28 22:50:49,030 INFO L793 eck$LassoCheckResult]: Loop: 411#L518-5 call subseq_#t~mem2 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem2; 412#L518-1 assume subseq_#t~short4;call subseq_#t~mem3 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1);subseq_#t~short4 := 0 != subseq_#t~mem3; 415#L518-3 assume !!subseq_#t~short4;havoc subseq_#t~mem2;havoc subseq_#t~mem3;havoc subseq_#t~short4;call subseq_#t~mem5 := read~int(subseq_~ps~0.base, subseq_~ps~0.offset, 1);call subseq_#t~mem6 := read~int(subseq_~pt~0.base, subseq_~pt~0.offset, 1); 416#L519 assume !(subseq_#t~mem5 == subseq_#t~mem6);havoc subseq_#t~mem5;havoc subseq_#t~mem6; 413#L519-2 subseq_#t~post8.base, subseq_#t~post8.offset := subseq_~pt~0.base, subseq_~pt~0.offset;subseq_~pt~0.base, subseq_~pt~0.offset := subseq_#t~post8.base, 1 + subseq_#t~post8.offset;havoc subseq_#t~post8.base, subseq_#t~post8.offset; 411#L518-5 [2021-10-28 22:50:49,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:49,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2021-10-28 22:50:49,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:49,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732272383] [2021-10-28 22:50:49,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:49,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:49,055 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:49,085 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:49,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:49,088 INFO L85 PathProgramCache]: Analyzing trace with hash 74536249, now seen corresponding path program 3 times [2021-10-28 22:50:49,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:49,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969635750] [2021-10-28 22:50:49,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:49,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:49,095 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:49,101 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:49,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:49,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1075475712, now seen corresponding path program 1 times [2021-10-28 22:50:49,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:49,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939028709] [2021-10-28 22:50:49,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:49,103 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:49,118 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:49,135 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:50,351 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:50:50,351 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:50:50,351 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:50:50,351 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:50:50,351 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:50:50,351 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:50,352 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:50:50,352 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:50:50,352 INFO L133 ssoRankerPreferences]: Filename of dumped script: subseq-alloca-2.i_Iteration5_Lasso [2021-10-28 22:50:50,352 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:50:50,352 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:50:50,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:50,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:50,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:50,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:51,834 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:50:51,834 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:50:51,834 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:51,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:51,842 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:51,844 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:51,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:51,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:51,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:51,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:51,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:51,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:51,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:51,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 22:50:51,863 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:51,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:51,911 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:51,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:51,912 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:51,915 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:51,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:51,927 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:51,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:51,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:51,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:51,928 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:51,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:51,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 22:50:51,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:51,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:51,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:51,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:51,984 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:51,988 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:51,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 22:50:51,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:51,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:51,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:52,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:52,009 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:52,009 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:52,032 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:52,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:52,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:52,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:52,072 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:52,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:52,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:52,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:52,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:52,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:52,093 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:52,093 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:52,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 22:50:52,111 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:52,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:52,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:52,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:52,151 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:52,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:52,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 22:50:52,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:52,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:52,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:52,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:52,191 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:52,191 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:52,228 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:50:52,305 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2021-10-28 22:50:52,305 INFO L444 ModelExtractionUtils]: 20 out of 58 variables were initially zero. Simplification set additionally 35 variables to zero. [2021-10-28 22:50:52,305 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:52,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:52,307 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:52,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 22:50:52,309 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:50:52,317 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 22:50:52,317 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:50:52,317 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_subseq_~pt~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3) = -1*ULTIMATE.start_subseq_~pt~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3 Supporting invariants [] [2021-10-28 22:50:52,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:52,449 INFO L297 tatePredicateManager]: 26 out of 27 supporting invariants were superfluous and have been removed [2021-10-28 22:50:52,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:52,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 22:50:52,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:52,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:52,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:50:52,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:52,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:52,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:52,720 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-28 22:50:52,721 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2021-10-28 22:50:52,761 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) Result 23 states and 30 transitions. Complement of second has 7 states. [2021-10-28 22:50:52,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 22:50:52,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2021-10-28 22:50:52,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-10-28 22:50:52,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 13 letters. Loop has 5 letters. [2021-10-28 22:50:52,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:52,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 18 letters. Loop has 5 letters. [2021-10-28 22:50:52,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:52,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 13 letters. Loop has 10 letters. [2021-10-28 22:50:52,764 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:52,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2021-10-28 22:50:52,765 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 22:50:52,765 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2021-10-28 22:50:52,765 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 22:50:52,765 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 22:50:52,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 22:50:52,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:50:52,765 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:50:52,765 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:50:52,765 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:50:52,765 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 22:50:52,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 22:50:52,766 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 22:50:52,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 22:50:52,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 10:50:52 BoogieIcfgContainer [2021-10-28 22:50:52,771 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 22:50:52,772 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:50:52,772 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:50:52,772 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:50:52,773 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:50:43" (3/4) ... [2021-10-28 22:50:52,776 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 22:50:52,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:50:52,777 INFO L168 Benchmark]: Toolchain (without parser) took 10546.44 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 100.0 MB in the beginning and 123.4 MB in the end (delta: -23.4 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:52,778 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 54.5 MB in the beginning and 54.5 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:50:52,778 INFO L168 Benchmark]: CACSL2BoogieTranslator took 545.07 ms. Allocated memory is still 136.3 MB. Free memory was 100.0 MB in the beginning and 104.7 MB in the end (delta: -4.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:52,778 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.79 ms. Allocated memory is still 136.3 MB. Free memory was 104.7 MB in the beginning and 103.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:52,779 INFO L168 Benchmark]: Boogie Preprocessor took 60.57 ms. Allocated memory is still 136.3 MB. Free memory was 103.0 MB in the beginning and 101.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:52,779 INFO L168 Benchmark]: RCFGBuilder took 476.28 ms. Allocated memory is still 136.3 MB. Free memory was 101.4 MB in the beginning and 89.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:52,780 INFO L168 Benchmark]: BuchiAutomizer took 9381.21 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 89.6 MB in the beginning and 123.4 MB in the end (delta: -33.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:50:52,780 INFO L168 Benchmark]: Witness Printer took 4.10 ms. Allocated memory is still 163.6 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:50:52,782 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 54.5 MB in the beginning and 54.5 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 545.07 ms. Allocated memory is still 136.3 MB. Free memory was 100.0 MB in the beginning and 104.7 MB in the end (delta: -4.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.79 ms. Allocated memory is still 136.3 MB. Free memory was 104.7 MB in the beginning and 103.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.57 ms. Allocated memory is still 136.3 MB. Free memory was 103.0 MB in the beginning and 101.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 476.28 ms. Allocated memory is still 136.3 MB. Free memory was 101.4 MB in the beginning and 89.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 9381.21 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 89.6 MB in the beginning and 123.4 MB in the end (delta: -33.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.10 ms. Allocated memory is still 163.6 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * i + unknown-#length-unknown[nondetString2] and consists of 5 locations. One deterministic module has affine ranking function -1 * pt + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.3s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 8.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 83 SDtfs, 133 SDslu, 156 SDs, 0 SdLazy, 123 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital208 mio100 ax110 hnf99 lsp84 ukn72 mio100 lsp49 div100 bol100 ite100 ukn100 eq176 hnf90 smp99 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 31ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 22:50:52,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ec8f338-e8fe-49de-a865-63beeaf5c078/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...