./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncpy-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_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/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_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncpy-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/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_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/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 57855fd15a600148bf8b2d693e60ae0827a95c157ed69e07e1c42c75fda7c9c4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:50:20,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:50:20,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:50:20,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:50:20,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:50:20,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:50:20,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:50:20,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:50:20,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:50:20,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:50:20,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:50:20,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:50:20,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:50:20,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:50:20,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:50:20,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:50:20,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:50:20,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:50:20,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:50:20,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:50:20,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:50:20,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:50:20,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:50:20,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:50:20,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:50:20,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:50:20,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:50:20,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:50:20,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:50:20,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:50:20,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:50:20,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:50:20,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:50:20,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:50:20,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:50:20,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:50:20,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:50:20,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:50:20,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:50:20,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:50:20,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:50:20,853 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 22:50:20,900 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:50:20,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:50:20,902 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:50:20,902 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:50:20,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:50:20,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:50:20,904 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:50:20,905 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 22:50:20,905 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 22:50:20,905 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 22:50:20,906 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 22:50:20,907 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 22:50:20,907 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 22:50:20,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:50:20,908 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:50:20,908 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 22:50:20,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:50:20,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:50:20,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:50:20,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 22:50:20,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 22:50:20,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 22:50:20,910 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:50:20,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:50:20,910 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 22:50:20,910 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:50:20,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 22:50:20,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:50:20,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:50:20,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:50:20,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:50:20,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:50:20,915 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 22:50:20,915 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_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57855fd15a600148bf8b2d693e60ae0827a95c157ed69e07e1c42c75fda7c9c4 [2021-10-28 22:50:21,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:50:21,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:50:21,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:50:21,209 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:50:21,210 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:50:21,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/array-memsafety/openbsd_cstrncpy-alloca-2.i [2021-10-28 22:50:21,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/data/f2be2695c/ec9cb19c1ca1460e9d1cedb97ec2153f/FLAGf578ddd5a [2021-10-28 22:50:21,904 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:50:21,905 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/sv-benchmarks/c/array-memsafety/openbsd_cstrncpy-alloca-2.i [2021-10-28 22:50:21,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/data/f2be2695c/ec9cb19c1ca1460e9d1cedb97ec2153f/FLAGf578ddd5a [2021-10-28 22:50:22,209 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/data/f2be2695c/ec9cb19c1ca1460e9d1cedb97ec2153f [2021-10-28 22:50:22,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:50:22,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:50:22,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:50:22,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:50:22,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:50:22,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:50:22" (1/1) ... [2021-10-28 22:50:22,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be0f3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:22, skipping insertion in model container [2021-10-28 22:50:22,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:50:22" (1/1) ... [2021-10-28 22:50:22,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:50:22,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:50:22,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:50:22,654 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:50:22,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:50:22,756 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:50:22,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:22 WrapperNode [2021-10-28 22:50:22,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:50:22,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:50:22,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:50:22,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:50:22,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:22" (1/1) ... [2021-10-28 22:50:22,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:22" (1/1) ... [2021-10-28 22:50:22,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:50:22,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:50:22,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:50:22,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:50:22,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:22" (1/1) ... [2021-10-28 22:50:22,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:22" (1/1) ... [2021-10-28 22:50:22,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:22" (1/1) ... [2021-10-28 22:50:22,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:22" (1/1) ... [2021-10-28 22:50:22,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:22" (1/1) ... [2021-10-28 22:50:22,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:22" (1/1) ... [2021-10-28 22:50:22,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:22" (1/1) ... [2021-10-28 22:50:22,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:50:22,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:50:22,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:50:22,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:50:22,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:22" (1/1) ... [2021-10-28 22:50:22,885 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:22,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:22,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:22,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 22:50:22,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 22:50:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 22:50:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:50:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 22:50:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:50:22,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:50:23,239 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:50:23,239 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-28 22:50:23,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:50:23 BoogieIcfgContainer [2021-10-28 22:50:23,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:50:23,243 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 22:50:23,243 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 22:50:23,246 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 22:50:23,247 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:50:23,247 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 10:50:22" (1/3) ... [2021-10-28 22:50:23,254 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60d6bf19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:50:23, skipping insertion in model container [2021-10-28 22:50:23,255 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:50:23,255 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:50:22" (2/3) ... [2021-10-28 22:50:23,255 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60d6bf19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:50:23, skipping insertion in model container [2021-10-28 22:50:23,255 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:50:23,256 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:50:23" (3/3) ... [2021-10-28 22:50:23,270 INFO L389 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrncpy-alloca-2.i [2021-10-28 22:50:23,336 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 22:50:23,337 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 22:50:23,337 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 22:50:23,337 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 22:50:23,337 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 22:50:23,337 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 22:50:23,338 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 22:50:23,338 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 22:50:23,363 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 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 22:50:23,382 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-28 22:50:23,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:23,382 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:23,389 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 22:50:23,389 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 22:50:23,389 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 22:50:23,390 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 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 22:50:23,392 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-28 22:50:23,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:23,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:23,393 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 22:50:23,393 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 22:50:23,401 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~ret14.base, main_#t~ret14.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~n~0 := main_#t~nondet9;havoc main_#t~nondet9; 10#L532true assume !(main_~length~0 < 1); 6#L532-2true assume !(main_~n~0 < 1); 3#L535-1true call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 16#L541-3true [2021-10-28 22:50:23,401 INFO L793 eck$LassoCheckResult]: Loop: 16#L541-3true assume !!(main_~i~0 < main_~length~0 - 1);call write~int(main_#t~nondet13, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet13; 21#L541-2true main_#t~post12 := main_~i~0;main_~i~0 := 1 + main_#t~post12;havoc main_#t~post12; 16#L541-3true [2021-10-28 22:50:23,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:23,408 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-10-28 22:50:23,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:23,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569561404] [2021-10-28 22:50:23,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:23,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:23,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:23,517 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:23,557 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:23,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:23,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2021-10-28 22:50:23,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:23,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305985102] [2021-10-28 22:50:23,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:23,577 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:23,590 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:23,602 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:23,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:23,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2021-10-28 22:50:23,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:23,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313260125] [2021-10-28 22:50:23,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:23,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:23,645 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:23,672 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:24,225 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:50:24,225 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:50:24,226 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:50:24,226 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:50:24,226 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:50:24,226 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:24,226 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:50:24,226 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:50:24,227 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncpy-alloca-2.i_Iteration1_Lasso [2021-10-28 22:50:24,227 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:50:24,227 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:50:24,265 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 22:50:24,283 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 22:50:24,458 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 22:50:24,462 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 22:50:24,465 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 22:50:24,469 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 22:50:24,473 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 22:50:24,477 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 22:50:24,487 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 22:50:24,510 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 22:50:24,513 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 22:50:24,516 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 22:50:24,519 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 22:50:24,808 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:50:24,813 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:50:24,815 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:24,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:24,823 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:24,829 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 22:50:24,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:24,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:24,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:24,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:24,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:24,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:24,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:24,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 22:50:24,862 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:24,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:24,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:24,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:24,904 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:24,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 22:50:24,908 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 22:50:24,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:24,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:24,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:24,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:24,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:24,928 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:24,945 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:50:25,008 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2021-10-28 22:50:25,008 INFO L444 ModelExtractionUtils]: 9 out of 22 variables were initially zero. Simplification set additionally 9 variables to zero. [2021-10-28 22:50:25,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:25,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:25,038 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:25,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 22:50:25,052 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:50:25,089 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-28 22:50:25,089 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:50:25,090 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_1) = -1*ULTIMATE.start_main_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_1 Supporting invariants [1*ULTIMATE.start_main_~nondetString~0.offset >= 0] [2021-10-28 22:50:25,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:25,150 INFO L297 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2021-10-28 22:50:25,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:25,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 22:50:25,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:25,274 WARN L261 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 22:50:25,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:25,338 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 22:50:25,359 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 22:50:25,361 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 20 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 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 22:50:25,469 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 20 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 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 45 states and 67 transitions. Complement of second has 8 states. [2021-10-28 22:50:25,470 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 22:50:25,471 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 22:50:25,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 44 transitions. [2021-10-28 22:50:25,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 44 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 22:50:25,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:25,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 44 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-28 22:50:25,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:25,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 44 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-28 22:50:25,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:25,476 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 67 transitions. [2021-10-28 22:50:25,480 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 22:50:25,484 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 16 states and 21 transitions. [2021-10-28 22:50:25,485 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-28 22:50:25,485 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-28 22:50:25,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2021-10-28 22:50:25,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:50:25,486 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-10-28 22:50:25,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2021-10-28 22:50:25,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-28 22:50:25,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:25,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2021-10-28 22:50:25,507 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-10-28 22:50:25,507 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-10-28 22:50:25,507 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 22:50:25,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2021-10-28 22:50:25,508 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 22:50:25,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:25,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:25,509 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:25,509 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 22:50:25,509 INFO L791 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 150#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~ret14.base, main_#t~ret14.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~n~0 := main_#t~nondet9;havoc main_#t~nondet9; 156#L532 assume !(main_~length~0 < 1); 151#L532-2 assume !(main_~n~0 < 1); 147#L535-1 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 148#L541-3 assume !(main_~i~0 < main_~length~0 - 1); 157#L541-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrncpy_#in~dst.base, cstrncpy_#in~dst.offset, cstrncpy_#in~src.base, cstrncpy_#in~src.offset, cstrncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstrncpy_#res.base, cstrncpy_#res.offset;havoc cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, cstrncpy_#t~mem5, cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset, cstrncpy_#t~pre6, cstrncpy_#t~pre2, cstrncpy_~d~0.base, cstrncpy_~d~0.offset, cstrncpy_~s~0.base, cstrncpy_~s~0.offset, cstrncpy_~dst.base, cstrncpy_~dst.offset, cstrncpy_~src.base, cstrncpy_~src.offset, cstrncpy_~n;cstrncpy_~dst.base, cstrncpy_~dst.offset := cstrncpy_#in~dst.base, cstrncpy_#in~dst.offset;cstrncpy_~src.base, cstrncpy_~src.offset := cstrncpy_#in~src.base, cstrncpy_#in~src.offset;cstrncpy_~n := cstrncpy_#in~n; 158#L516 assume 0 != cstrncpy_~n;cstrncpy_~d~0.base, cstrncpy_~d~0.offset := cstrncpy_~dst.base, cstrncpy_~dst.offset;cstrncpy_~s~0.base, cstrncpy_~s~0.offset := cstrncpy_~src.base, cstrncpy_~src.offset; 155#L519-4 [2021-10-28 22:50:25,510 INFO L793 eck$LassoCheckResult]: Loop: 155#L519-4 cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset := cstrncpy_~d~0.base, cstrncpy_~d~0.offset;cstrncpy_~d~0.base, cstrncpy_~d~0.offset := cstrncpy_#t~post3.base, 1 + cstrncpy_#t~post3.offset;cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset := cstrncpy_~s~0.base, cstrncpy_~s~0.offset;cstrncpy_~s~0.base, cstrncpy_~s~0.offset := cstrncpy_#t~post4.base, 1 + cstrncpy_#t~post4.offset;call cstrncpy_#t~mem5 := read~int(cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, 1);call write~int(cstrncpy_#t~mem5, cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, 1); 159#L520 assume !(0 == cstrncpy_#t~mem5);havoc cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset;havoc cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset;havoc cstrncpy_#t~mem5; 160#L519-1 cstrncpy_#t~pre2 := cstrncpy_~n - 1;cstrncpy_~n := cstrncpy_~n - 1; 154#L519-2 assume !!(0 != cstrncpy_#t~pre2);havoc cstrncpy_#t~pre2; 155#L519-4 [2021-10-28 22:50:25,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:25,510 INFO L85 PathProgramCache]: Analyzing trace with hash 180430706, now seen corresponding path program 1 times [2021-10-28 22:50:25,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:25,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440715196] [2021-10-28 22:50:25,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:25,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:25,530 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:25,553 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:25,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:25,554 INFO L85 PathProgramCache]: Analyzing trace with hash 2049688, now seen corresponding path program 1 times [2021-10-28 22:50:25,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:25,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806966461] [2021-10-28 22:50:25,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:25,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:25,566 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:25,578 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:25,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:25,579 INFO L85 PathProgramCache]: Analyzing trace with hash -299020919, now seen corresponding path program 1 times [2021-10-28 22:50:25,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:25,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086094579] [2021-10-28 22:50:25,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:25,580 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:25,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:25,887 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 22:50:25,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:50:25,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086094579] [2021-10-28 22:50:25,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086094579] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:50:25,889 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:50:25,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 22:50:25,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350401238] [2021-10-28 22:50:26,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:50:26,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 22:50:26,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 22:50:26,067 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:26,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:50:26,182 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2021-10-28 22:50:26,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 22:50:26,183 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2021-10-28 22:50:26,185 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-28 22:50:26,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 28 transitions. [2021-10-28 22:50:26,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 22:50:26,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 22:50:26,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 28 transitions. [2021-10-28 22:50:26,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:50:26,186 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-10-28 22:50:26,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 28 transitions. [2021-10-28 22:50:26,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2021-10-28 22:50:26,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.25) internal successors, (25), 19 states have internal predecessors, (25), 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 22:50:26,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2021-10-28 22:50:26,189 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-10-28 22:50:26,189 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-10-28 22:50:26,189 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 22:50:26,190 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2021-10-28 22:50:26,190 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 22:50:26,191 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:26,191 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:26,191 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:26,191 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 22:50:26,192 INFO L791 eck$LassoCheckResult]: Stem: 207#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 208#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~ret14.base, main_#t~ret14.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~n~0 := main_#t~nondet9;havoc main_#t~nondet9; 214#L532 assume !(main_~length~0 < 1); 209#L532-2 assume !(main_~n~0 < 1); 205#L535-1 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 206#L541-3 assume !(main_~i~0 < main_~length~0 - 1); 216#L541-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrncpy_#in~dst.base, cstrncpy_#in~dst.offset, cstrncpy_#in~src.base, cstrncpy_#in~src.offset, cstrncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstrncpy_#res.base, cstrncpy_#res.offset;havoc cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, cstrncpy_#t~mem5, cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset, cstrncpy_#t~pre6, cstrncpy_#t~pre2, cstrncpy_~d~0.base, cstrncpy_~d~0.offset, cstrncpy_~s~0.base, cstrncpy_~s~0.offset, cstrncpy_~dst.base, cstrncpy_~dst.offset, cstrncpy_~src.base, cstrncpy_~src.offset, cstrncpy_~n;cstrncpy_~dst.base, cstrncpy_~dst.offset := cstrncpy_#in~dst.base, cstrncpy_#in~dst.offset;cstrncpy_~src.base, cstrncpy_~src.offset := cstrncpy_#in~src.base, cstrncpy_#in~src.offset;cstrncpy_~n := cstrncpy_#in~n; 217#L516 assume 0 != cstrncpy_~n;cstrncpy_~d~0.base, cstrncpy_~d~0.offset := cstrncpy_~dst.base, cstrncpy_~dst.offset;cstrncpy_~s~0.base, cstrncpy_~s~0.offset := cstrncpy_~src.base, cstrncpy_~src.offset; 221#L519-4 cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset := cstrncpy_~d~0.base, cstrncpy_~d~0.offset;cstrncpy_~d~0.base, cstrncpy_~d~0.offset := cstrncpy_#t~post3.base, 1 + cstrncpy_#t~post3.offset;cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset := cstrncpy_~s~0.base, cstrncpy_~s~0.offset;cstrncpy_~s~0.base, cstrncpy_~s~0.offset := cstrncpy_#t~post4.base, 1 + cstrncpy_#t~post4.offset;call cstrncpy_#t~mem5 := read~int(cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, 1);call write~int(cstrncpy_#t~mem5, cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, 1); 215#L520 assume 0 == cstrncpy_#t~mem5;havoc cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset;havoc cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset;havoc cstrncpy_#t~mem5; 210#L521-3 [2021-10-28 22:50:26,192 INFO L793 eck$LassoCheckResult]: Loop: 210#L521-3 cstrncpy_#t~pre6 := cstrncpy_~n - 1;cstrncpy_~n := cstrncpy_~n - 1; 211#L521-1 assume !!(0 != cstrncpy_#t~pre6);havoc cstrncpy_#t~pre6;cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset := cstrncpy_~d~0.base, cstrncpy_~d~0.offset;cstrncpy_~d~0.base, cstrncpy_~d~0.offset := cstrncpy_#t~post7.base, 1 + cstrncpy_#t~post7.offset;call write~int(0, cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset, 1);havoc cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset; 210#L521-3 [2021-10-28 22:50:26,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:26,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1595217781, now seen corresponding path program 1 times [2021-10-28 22:50:26,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:26,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127936338] [2021-10-28 22:50:26,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:26,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:26,215 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:26,241 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:26,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:26,242 INFO L85 PathProgramCache]: Analyzing trace with hash 2374, now seen corresponding path program 1 times [2021-10-28 22:50:26,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:26,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695872342] [2021-10-28 22:50:26,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:26,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:26,250 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:26,256 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:26,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:26,257 INFO L85 PathProgramCache]: Analyzing trace with hash -299035718, now seen corresponding path program 1 times [2021-10-28 22:50:26,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:26,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930684946] [2021-10-28 22:50:26,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:26,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:26,278 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:26,304 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:27,429 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:50:27,430 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:50:27,430 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:50:27,430 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:50:27,430 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:50:27,430 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:27,430 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:50:27,430 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:50:27,430 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncpy-alloca-2.i_Iteration3_Lasso [2021-10-28 22:50:27,430 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:50:27,431 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:50:27,437 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 22:50:27,440 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 22:50:27,443 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 22:50:27,445 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 22:50:27,448 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 22:50:27,450 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 22:50:27,453 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 22:50:27,944 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 22:50:27,946 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 22:50:27,948 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 22:50:27,950 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 22:50:27,952 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 22:50:27,954 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 22:50:27,955 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 22:50:27,958 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 22:50:27,960 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 22:50:27,961 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 22:50:27,963 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 22:50:27,965 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 22:50:27,967 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 22:50:27,969 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 22:50:27,975 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 22:50:27,977 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 22:50:27,979 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 22:50:28,598 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:50:28,599 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:50:28,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:28,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:28,600 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:28,607 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 22:50:28,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:28,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:28,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:28,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:28,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:28,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:28,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:28,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 22:50:28,630 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:28,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:28,674 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:28,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:28,675 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:28,682 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 22:50:28,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:28,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:28,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:28,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:28,694 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:28,695 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:28,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 22:50:28,709 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:28,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:28,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:28,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:28,747 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:28,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 22:50:28,758 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 22:50:28,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:28,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:28,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:28,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:28,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:28,770 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:28,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:28,785 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:28,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:28,808 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:28,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:28,809 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:28,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 22:50:28,811 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 22:50:28,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:28,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:28,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:28,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:28,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:28,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:28,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:28,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:28,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:28,848 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:28,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:28,849 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:28,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 22:50:28,853 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 22:50:28,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:28,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:28,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:28,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:28,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:28,862 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:28,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:28,866 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:28,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-28 22:50:28,891 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:28,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:28,898 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:28,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 22:50:28,899 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 22:50:28,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:28,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:28,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:28,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:28,910 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:28,910 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:28,918 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:28,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:28,943 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:28,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:28,944 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:28,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 22:50:28,949 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 22:50:28,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:28,956 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:28,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:28,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:28,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:28,957 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:28,957 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:28,964 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:28,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:28,985 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:28,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:28,986 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:28,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 22:50:28,988 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 22:50:28,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:28,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:28,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:28,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:28,999 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:28,999 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:29,033 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:29,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:29,069 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:29,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:29,070 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:29,078 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 22:50:29,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:29,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:29,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:29,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:29,101 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:29,101 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:29,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 22:50:29,129 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:29,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:29,166 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:29,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:29,168 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:29,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 22:50:29,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:29,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:29,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:29,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:29,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:29,180 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:29,180 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:29,209 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:29,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:29,240 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:29,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:29,242 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:29,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 22:50:29,243 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 22:50:29,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:29,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:29,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:29,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:29,256 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:29,256 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:29,277 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:29,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:29,319 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:29,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:29,320 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:29,330 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 22:50:29,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:29,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:29,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:29,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:29,343 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:29,343 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:29,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 22:50:29,349 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:29,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-10-28 22:50:29,371 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:29,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:29,372 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:29,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 22:50:29,373 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 22:50:29,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:29,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:29,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:29,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:29,386 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:29,386 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:29,409 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:29,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:29,445 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:29,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:29,450 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:29,456 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 22:50:29,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 22:50:29,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:29,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:29,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:29,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:29,470 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:29,470 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:29,489 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:29,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:29,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:29,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:29,530 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:29,542 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 22:50:29,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:29,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:29,553 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 22:50:29,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:29,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 22:50:29,588 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-10-28 22:50:29,589 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 22:50:29,673 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:50:29,822 INFO L443 ModelExtractionUtils]: Simplification made 21 calls to the SMT solver. [2021-10-28 22:50:29,823 INFO L444 ModelExtractionUtils]: 51 out of 81 variables were initially zero. Simplification set additionally 27 variables to zero. [2021-10-28 22:50:29,823 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:29,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:29,824 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:29,831 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:50:29,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 22:50:29,854 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2021-10-28 22:50:29,854 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:50:29,854 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncpy_~d~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc10.base)_2) = -1*ULTIMATE.start_cstrncpy_~d~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc10.base)_2 Supporting invariants [] [2021-10-28 22:50:29,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:29,936 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2021-10-28 22:50:29,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:30,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 22:50:30,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:30,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:30,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:50:30,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:30,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:50:30,155 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 1 loop predicates [2021-10-28 22:50:30,155 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8 Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:30,230 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 28 transitions. Complement of second has 7 states. [2021-10-28 22:50:30,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 4 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 22:50:30,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:30,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2021-10-28 22:50:30,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 10 letters. Loop has 2 letters. [2021-10-28 22:50:30,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:30,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 12 letters. Loop has 2 letters. [2021-10-28 22:50:30,232 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:30,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 10 letters. Loop has 4 letters. [2021-10-28 22:50:30,233 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:30,233 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 28 transitions. [2021-10-28 22:50:30,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 22:50:30,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 14 states and 17 transitions. [2021-10-28 22:50:30,234 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-28 22:50:30,234 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-28 22:50:30,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2021-10-28 22:50:30,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:50:30,235 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-10-28 22:50:30,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2021-10-28 22:50:30,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-28 22:50:30,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:50:30,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2021-10-28 22:50:30,237 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-10-28 22:50:30,237 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-10-28 22:50:30,237 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 22:50:30,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2021-10-28 22:50:30,238 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 22:50:30,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:50:30,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:50:30,238 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:50:30,238 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 22:50:30,239 INFO L791 eck$LassoCheckResult]: Stem: 371#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 372#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~nondet13, main_#t~post12, main_~i~0, main_#t~ret14.base, main_#t~ret14.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~n~0 := main_#t~nondet9;havoc main_#t~nondet9; 376#L532 assume !(main_~length~0 < 1); 373#L532-2 assume !(main_~n~0 < 1); 369#L535-1 call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;main_~i~0 := 0; 370#L541-3 assume !!(main_~i~0 < main_~length~0 - 1);call write~int(main_#t~nondet13, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet13; 381#L541-2 main_#t~post12 := main_~i~0;main_~i~0 := 1 + main_#t~post12;havoc main_#t~post12; 382#L541-3 assume !(main_~i~0 < main_~length~0 - 1); 379#L541-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrncpy_#in~dst.base, cstrncpy_#in~dst.offset, cstrncpy_#in~src.base, cstrncpy_#in~src.offset, cstrncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstrncpy_#res.base, cstrncpy_#res.offset;havoc cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, cstrncpy_#t~mem5, cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset, cstrncpy_#t~pre6, cstrncpy_#t~pre2, cstrncpy_~d~0.base, cstrncpy_~d~0.offset, cstrncpy_~s~0.base, cstrncpy_~s~0.offset, cstrncpy_~dst.base, cstrncpy_~dst.offset, cstrncpy_~src.base, cstrncpy_~src.offset, cstrncpy_~n;cstrncpy_~dst.base, cstrncpy_~dst.offset := cstrncpy_#in~dst.base, cstrncpy_#in~dst.offset;cstrncpy_~src.base, cstrncpy_~src.offset := cstrncpy_#in~src.base, cstrncpy_#in~src.offset;cstrncpy_~n := cstrncpy_#in~n; 380#L516 assume 0 != cstrncpy_~n;cstrncpy_~d~0.base, cstrncpy_~d~0.offset := cstrncpy_~dst.base, cstrncpy_~dst.offset;cstrncpy_~s~0.base, cstrncpy_~s~0.offset := cstrncpy_~src.base, cstrncpy_~src.offset; 375#L519-4 [2021-10-28 22:50:30,239 INFO L793 eck$LassoCheckResult]: Loop: 375#L519-4 cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset := cstrncpy_~d~0.base, cstrncpy_~d~0.offset;cstrncpy_~d~0.base, cstrncpy_~d~0.offset := cstrncpy_#t~post3.base, 1 + cstrncpy_#t~post3.offset;cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset := cstrncpy_~s~0.base, cstrncpy_~s~0.offset;cstrncpy_~s~0.base, cstrncpy_~s~0.offset := cstrncpy_#t~post4.base, 1 + cstrncpy_#t~post4.offset;call cstrncpy_#t~mem5 := read~int(cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, 1);call write~int(cstrncpy_#t~mem5, cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, 1); 377#L520 assume !(0 == cstrncpy_#t~mem5);havoc cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset;havoc cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset;havoc cstrncpy_#t~mem5; 378#L519-1 cstrncpy_#t~pre2 := cstrncpy_~n - 1;cstrncpy_~n := cstrncpy_~n - 1; 374#L519-2 assume !!(0 != cstrncpy_#t~pre2);havoc cstrncpy_#t~pre2; 375#L519-4 [2021-10-28 22:50:30,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:30,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1596934864, now seen corresponding path program 1 times [2021-10-28 22:50:30,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:30,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147420021] [2021-10-28 22:50:30,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:30,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:30,251 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:30,264 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:30,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:30,265 INFO L85 PathProgramCache]: Analyzing trace with hash 2049688, now seen corresponding path program 2 times [2021-10-28 22:50:30,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:30,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409668225] [2021-10-28 22:50:30,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:30,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:30,272 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:30,278 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:30,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:30,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1308529127, now seen corresponding path program 1 times [2021-10-28 22:50:30,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:50:30,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689245460] [2021-10-28 22:50:30,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:50:30,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:50:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:30,296 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:50:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:50:30,315 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:50:31,107 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 22:50:31,108 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 22:50:31,108 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 22:50:31,108 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 22:50:31,108 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 22:50:31,108 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:31,108 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 22:50:31,108 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 22:50:31,108 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncpy-alloca-2.i_Iteration4_Lasso [2021-10-28 22:50:31,108 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 22:50:31,108 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 22:50:31,115 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 22:50:31,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 22:50:31,122 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 22:50:31,124 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 22:50:31,127 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 22:50:31,129 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 22:50:31,131 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 22:50:31,133 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 22:50:31,135 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 22:50:31,138 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 22:50:31,140 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 22:50:31,142 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 22:50:31,144 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 22:50:31,146 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 22:50:31,148 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 22:50:31,151 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 22:50:31,154 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 22:50:31,157 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 22:50:31,518 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 22:50:31,520 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 22:50:31,522 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 22:50:31,524 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 22:50:31,525 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 22:50:31,527 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 22:50:32,055 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 22:50:32,056 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 22:50:32,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,075 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 22:50:32,078 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 22:50:32,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:32,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:32,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:32,087 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:32,089 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:32,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:32,114 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,115 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 22:50:32,116 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 22:50:32,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:32,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:32,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,125 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:32,125 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:32,126 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:32,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:32,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,151 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 22:50:32,152 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 22:50:32,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:32,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:32,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:32,161 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:32,162 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:32,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:32,186 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,187 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 22:50:32,188 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 22:50:32,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:32,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,197 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:32,197 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:32,206 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:32,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:32,228 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,229 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 22:50:32,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 22:50:32,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:32,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:32,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,238 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:32,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:32,239 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:32,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:32,263 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,264 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 22:50:32,265 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 22:50:32,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:32,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:32,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:32,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:32,274 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:32,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-28 22:50:32,302 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,303 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,304 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 22:50:32,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 22:50:32,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,312 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:32,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:32,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,313 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:32,313 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:32,314 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:32,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:32,334 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,336 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,337 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 22:50:32,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 22:50:32,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:32,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:32,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,345 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:32,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:32,346 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:32,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:32,366 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,366 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 22:50:32,369 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 22:50:32,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,376 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:32,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:32,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,377 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:32,377 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:32,378 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:32,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:32,399 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,399 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 22:50:32,401 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 22:50:32,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:32,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,411 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:32,411 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:32,445 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:32,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:32,485 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,486 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,488 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 22:50:32,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:32,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:32,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,498 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:32,498 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:32,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 22:50:32,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:32,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-28 22:50:32,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,539 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 22:50:32,541 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 22:50:32,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:32,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:32,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:32,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:32,553 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:32,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-28 22:50:32,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,577 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 22:50:32,580 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 22:50:32,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,591 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:32,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:32,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,592 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:32,592 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:32,593 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:32,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-28 22:50:32,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,615 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 22:50:32,620 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 22:50:32,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,628 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:32,628 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,629 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 22:50:32,629 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 22:50:32,632 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:32,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-28 22:50:32,654 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,655 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 22:50:32,657 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 22:50:32,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:32,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:32,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:32,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:32,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:32,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:32,688 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,689 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 22:50:32,691 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 22:50:32,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,699 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:32,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:32,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,699 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:32,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:32,700 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:32,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-28 22:50:32,722 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,722 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 22:50:32,730 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 22:50:32,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,738 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 22:50:32,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 22:50:32,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,739 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 22:50:32,739 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 22:50:32,740 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 22:50:32,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-28 22:50:32,761 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:32,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:32,762 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:32,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 22:50:32,763 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 22:50:32,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 22:50:32,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 22:50:32,772 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 22:50:32,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 22:50:32,817 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-10-28 22:50:32,817 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 22:50:32,906 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 22:50:33,094 INFO L443 ModelExtractionUtils]: Simplification made 31 calls to the SMT solver. [2021-10-28 22:50:33,094 INFO L444 ModelExtractionUtils]: 70 out of 101 variables were initially zero. Simplification set additionally 27 variables to zero. [2021-10-28 22:50:33,095 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:50:33,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:50:33,096 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:50:33,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 22:50:33,097 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 22:50:33,108 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-10-28 22:50:33,108 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 22:50:33,108 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncpy_~n) = 1*ULTIMATE.start_cstrncpy_~n Supporting invariants [2*ULTIMATE.start_cstrncpy_~n - 1 >= 0] [2021-10-28 22:50:33,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 22:50:33,167 INFO L297 tatePredicateManager]: 11 out of 12 supporting invariants were superfluous and have been removed [2021-10-28 22:50:33,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:33,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 22:50:33,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:33,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:50:33,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:33,358 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 22:50:33,359 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-10-28 22:50:33,359 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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 22:50:33,459 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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) Result 21 states and 24 transitions. Complement of second has 8 states. [2021-10-28 22:50:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 1 non-accepting loop states 2 accepting loop states [2021-10-28 22:50:33,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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 22:50:33,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 15 transitions. [2021-10-28 22:50:33,460 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 10 letters. Loop has 4 letters. [2021-10-28 22:50:33,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:33,460 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 22:50:33,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-28 22:50:33,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:50:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:33,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 22:50:33,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:50:33,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 22:50:33,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 22:50:33,649 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 22:50:33,652 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 2 loop predicates [2021-10-28 22:50:33,652 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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 22:50:33,713 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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) Result 18 states and 22 transitions. Complement of second has 8 states. [2021-10-28 22:50:33,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 22:50:33,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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 22:50:33,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2021-10-28 22:50:33,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 10 letters. Loop has 4 letters. [2021-10-28 22:50:33,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:33,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2021-10-28 22:50:33,723 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:33,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 10 letters. Loop has 8 letters. [2021-10-28 22:50:33,724 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 22:50:33,724 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2021-10-28 22:50:33,729 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 22:50:33,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2021-10-28 22:50:33,730 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 22:50:33,730 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 22:50:33,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 22:50:33,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:50:33,730 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:50:33,730 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:50:33,730 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 22:50:33,730 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 22:50:33,730 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 22:50:33,730 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 22:50:33,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 22:50:33,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 10:50:33 BoogieIcfgContainer [2021-10-28 22:50:33,739 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 22:50:33,740 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:50:33,741 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:50:33,741 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:50:33,742 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:50:23" (3/4) ... [2021-10-28 22:50:33,745 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 22:50:33,745 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:50:33,747 INFO L168 Benchmark]: Toolchain (without parser) took 11532.11 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 70.4 MB in the beginning and 97.0 MB in the end (delta: -26.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:33,748 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory is still 50.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:50:33,749 INFO L168 Benchmark]: CACSL2BoogieTranslator took 543.42 ms. Allocated memory is still 100.7 MB. Free memory was 70.1 MB in the beginning and 54.8 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:33,749 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.25 ms. Allocated memory is still 100.7 MB. Free memory was 54.8 MB in the beginning and 52.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:33,749 INFO L168 Benchmark]: Boogie Preprocessor took 38.18 ms. Allocated memory is still 100.7 MB. Free memory was 52.9 MB in the beginning and 51.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:33,750 INFO L168 Benchmark]: RCFGBuilder took 369.54 ms. Allocated memory is still 100.7 MB. Free memory was 51.6 MB in the beginning and 40.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 22:50:33,750 INFO L168 Benchmark]: BuchiAutomizer took 10496.90 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 40.5 MB in the beginning and 98.0 MB in the end (delta: -57.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:50:33,751 INFO L168 Benchmark]: Witness Printer took 4.82 ms. Allocated memory is still 146.8 MB. Free memory was 98.0 MB in the beginning and 97.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:50:33,755 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory is still 50.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 543.42 ms. Allocated memory is still 100.7 MB. Free memory was 70.1 MB in the beginning and 54.8 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.25 ms. Allocated memory is still 100.7 MB. Free memory was 54.8 MB in the beginning and 52.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.18 ms. Allocated memory is still 100.7 MB. Free memory was 52.9 MB in the beginning and 51.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 369.54 ms. Allocated memory is still 100.7 MB. Free memory was 51.6 MB in the beginning and 40.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10496.90 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 40.5 MB in the beginning and 98.0 MB in the end (delta: -57.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.82 ms. Allocated memory is still 146.8 MB. Free memory was 98.0 MB in the beginning and 97.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length * sizeof(char))] + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * d + unknown-#length-unknown[__builtin_alloca (n * sizeof(char))] and consists of 6 locations. One deterministic module has affine ranking function n and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 8.9s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 2. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 65 SDtfs, 98 SDslu, 114 SDs, 0 SdLazy, 90 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital198 mio100 ax109 hnf99 lsp86 ukn81 mio100 lsp52 div100 bol100 ite100 ukn100 eq187 hnf89 smp98 dnf124 smp100 tf100 neg99 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 325ms VariablesStem: 15 VariablesLoop: 12 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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 22:50:33,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7406dc3a-f8d2-4d13-98c9-3b7cb32d79b0/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...