./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dab3cfcd7f834fcfbdfecec143b1f55491432e66d7189ec50c725339851d6e17 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:21:10,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:21:10,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:21:10,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:21:10,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:21:10,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:21:10,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:21:10,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:21:10,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:21:10,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:21:10,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:21:10,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:21:10,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:21:10,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:21:10,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:21:10,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:21:10,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:21:10,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:21:10,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:21:10,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:21:10,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:21:10,857 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:21:10,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:21:10,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:21:10,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:21:10,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:21:10,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:21:10,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:21:10,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:21:10,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:21:10,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:21:10,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:21:10,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:21:10,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:21:10,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:21:10,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:21:10,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:21:10,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:21:10,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:21:10,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:21:10,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:21:10,880 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 20:21:10,927 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:21:10,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:21:10,928 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:21:10,928 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:21:10,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:21:10,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:21:10,930 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:21:10,930 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:21:10,931 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:21:10,931 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:21:10,931 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:21:10,931 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:21:10,932 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:21:10,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:21:10,932 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:21:10,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:21:10,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:21:10,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:21:10,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:21:10,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:21:10,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:21:10,934 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:21:10,934 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:21:10,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:21:10,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:21:10,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:21:10,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:21:10,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:21:10,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:21:10,942 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:21:10,943 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_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dab3cfcd7f834fcfbdfecec143b1f55491432e66d7189ec50c725339851d6e17 [2021-10-21 20:21:11,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:21:11,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:21:11,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:21:11,258 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:21:11,259 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:21:11,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i [2021-10-21 20:21:11,349 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/data/711866353/1d2684a558e74fc498a05cbfa6cfbe95/FLAGb66a05654 [2021-10-21 20:21:11,898 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:21:11,899 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrpbrk-alloca-1.i [2021-10-21 20:21:11,912 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/data/711866353/1d2684a558e74fc498a05cbfa6cfbe95/FLAGb66a05654 [2021-10-21 20:21:12,225 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/data/711866353/1d2684a558e74fc498a05cbfa6cfbe95 [2021-10-21 20:21:12,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:21:12,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:21:12,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:21:12,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:21:12,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:21:12,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@409f59d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12, skipping insertion in model container [2021-10-21 20:21:12,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:21:12,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:21:12,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:21:12,642 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:21:12,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:21:12,719 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:21:12,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12 WrapperNode [2021-10-21 20:21:12,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:21:12,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:21:12,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:21:12,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:21:12,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:21:12,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:21:12,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:21:12,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:21:12,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:21:12,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:21:12,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:21:12,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:21:12,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,874 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:12,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:12,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:12,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:21:12,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 20:21:12,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 20:21:12,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:21:12,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 20:21:12,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:21:12,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:21:13,243 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:21:13,243 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-21 20:21:13,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:21:13 BoogieIcfgContainer [2021-10-21 20:21:13,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:21:13,246 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:21:13,247 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:21:13,250 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:21:13,251 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:21:13,251 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:21:12" (1/3) ... [2021-10-21 20:21:13,257 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b6ec18e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:21:13, skipping insertion in model container [2021-10-21 20:21:13,257 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:21:13,257 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (2/3) ... [2021-10-21 20:21:13,258 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b6ec18e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:21:13, skipping insertion in model container [2021-10-21 20:21:13,258 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:21:13,258 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:21:13" (3/3) ... [2021-10-21 20:21:13,259 INFO L389 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrpbrk-alloca-1.i [2021-10-21 20:21:13,304 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:21:13,305 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:21:13,305 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:21:13,305 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:21:13,305 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:21:13,306 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:21:13,306 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:21:13,306 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:21:13,319 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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) [2021-10-21 20:21:13,336 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-21 20:21:13,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:21:13,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:21:13,342 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-21 20:21:13,342 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:21:13,342 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:21:13,343 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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) [2021-10-21 20:21:13,344 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-21 20:21:13,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:21:13,345 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:21:13,345 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-21 20:21:13,345 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:21:13,352 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 12#L562true assume !(main_~length1~0 < 1); 15#L562-2true assume !(main_~length2~0 < 1); 13#L565-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 14#L553-4true [2021-10-21 20:21:13,353 INFO L793 eck$LassoCheckResult]: Loop: 14#L553-4true cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 10#L552-1true assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 7#L553-3true assume !true; 14#L553-4true [2021-10-21 20:21:13,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:13,359 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-10-21 20:21:13,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:13,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908343420] [2021-10-21 20:21:13,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:13,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:13,481 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:13,530 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:13,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:13,548 INFO L82 PathProgramCache]: Analyzing trace with hash 49828, now seen corresponding path program 1 times [2021-10-21 20:21:13,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:13,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139335686] [2021-10-21 20:21:13,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:13,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:13,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:21:13,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:21:13,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139335686] [2021-10-21 20:21:13,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139335686] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:21:13,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:21:13,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-21 20:21:13,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489136296] [2021-10-21 20:21:13,605 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:21:13,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:21:13,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 20:21:13,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:21:13,622 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-10-21 20:21:13,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:21:13,628 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-10-21 20:21:13,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 20:21:13,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2021-10-21 20:21:13,631 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-21 20:21:13,635 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2021-10-21 20:21:13,635 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-21 20:21:13,636 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-21 20:21:13,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-10-21 20:21:13,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:21:13,637 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-21 20:21:13,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-10-21 20:21:13,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-21 20:21:13,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:13,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-10-21 20:21:13,659 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-21 20:21:13,659 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-21 20:21:13,659 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:21:13,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-10-21 20:21:13,660 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-21 20:21:13,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:21:13,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:21:13,661 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-21 20:21:13,661 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:21:13,661 INFO L791 eck$LassoCheckResult]: Stem: 38#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 39#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 42#L562 assume !(main_~length1~0 < 1); 43#L562-2 assume !(main_~length2~0 < 1); 46#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 44#L553-4 [2021-10-21 20:21:13,662 INFO L793 eck$LassoCheckResult]: Loop: 44#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 47#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 40#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 41#L553-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 44#L553-4 [2021-10-21 20:21:13,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:13,662 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2021-10-21 20:21:13,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:13,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288960383] [2021-10-21 20:21:13,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:13,663 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:13,685 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:13,710 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:13,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:13,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1544297, now seen corresponding path program 1 times [2021-10-21 20:21:13,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:13,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980082271] [2021-10-21 20:21:13,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:13,712 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:13,723 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:13,737 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:13,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:13,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1298350894, now seen corresponding path program 1 times [2021-10-21 20:21:13,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:13,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477779777] [2021-10-21 20:21:13,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:13,739 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:13,767 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:13,809 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:14,707 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:21:14,708 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:21:14,715 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:21:14,716 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:21:14,716 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:21:14,716 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:14,716 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:21:14,716 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:21:14,716 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-1.i_Iteration2_Lasso [2021-10-21 20:21:14,717 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:21:14,717 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:21:14,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:15,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:15,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:15,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:15,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:15,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:15,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:15,714 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:21:15,721 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:21:15,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:15,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:15,725 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:15,737 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 [2021-10-21 20:21:15,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:15,747 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:15,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:15,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:15,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:15,750 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:15,750 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:15,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 20:21:15,762 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:15,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:15,805 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:15,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:15,807 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:15,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 20:21:15,817 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 [2021-10-21 20:21:15,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:15,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:15,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:15,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:15,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:15,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:15,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:15,849 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:15,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:15,874 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:15,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:15,875 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:15,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 20:21:15,878 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 [2021-10-21 20:21:15,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:15,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:15,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:15,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:15,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:15,888 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:15,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:15,901 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:15,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:15,937 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:15,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:15,941 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:15,949 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 [2021-10-21 20:21:15,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:15,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:15,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:15,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:15,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:15,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:15,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:15,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 20:21:15,973 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,011 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,017 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 [2021-10-21 20:21:16,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 20:21:16,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,025 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:16,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:16,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:16,049 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-21 20:21:16,074 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,075 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 20:21:16,085 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 [2021-10-21 20:21:16,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,096 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:16,097 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:16,108 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,157 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,165 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 [2021-10-21 20:21:16,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:16,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 20:21:16,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:16,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:16,187 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-21 20:21:16,215 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,219 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,240 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 [2021-10-21 20:21:16,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:16,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,254 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:16,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:16,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 20:21:16,277 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,316 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,323 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 [2021-10-21 20:21:16,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 20:21:16,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,335 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:16,335 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:16,339 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,366 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,368 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,373 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 [2021-10-21 20:21:16,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 20:21:16,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:16,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:16,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:16,384 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,407 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,408 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 20:21:16,412 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 [2021-10-21 20:21:16,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:16,423 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:16,448 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,472 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,473 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 20:21:16,484 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 [2021-10-21 20:21:16,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,495 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:16,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,496 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:16,496 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:16,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,541 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,541 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 20:21:16,546 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 [2021-10-21 20:21:16,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,566 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:16,567 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:16,582 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:21:16,632 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-21 20:21:16,632 INFO L444 ModelExtractionUtils]: 14 out of 25 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-10-21 20:21:16,634 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,635 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,674 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:21:16,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 20:21:16,708 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:21:16,708 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:21:16,708 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrpbrk_~s1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1) = -1*ULTIMATE.start_cstrpbrk_~s1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1 Supporting invariants [] [2021-10-21 20:21:16,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,757 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2021-10-21 20:21:16,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:16,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 20:21:16,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:21:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:16,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 20:21:16,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:21:16,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:21:16,934 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 [2021-10-21 20:21:16,935 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:16,979 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 20 transitions. Complement of second has 4 states. [2021-10-21 20:21:16,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 20:21:16,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:16,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2021-10-21 20:21:16,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-21 20:21:16,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:21:16,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2021-10-21 20:21:16,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:21:16,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 5 letters. Loop has 8 letters. [2021-10-21 20:21:16,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:21:16,984 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2021-10-21 20:21:16,985 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:21:16,986 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 15 states and 19 transitions. [2021-10-21 20:21:16,986 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-21 20:21:16,986 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-21 20:21:16,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2021-10-21 20:21:16,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:21:16,986 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-21 20:21:16,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2021-10-21 20:21:16,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-10-21 20:21:16,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:16,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2021-10-21 20:21:16,988 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2021-10-21 20:21:16,988 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2021-10-21 20:21:16,988 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:21:16,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2021-10-21 20:21:16,989 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:21:16,989 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:21:16,989 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:21:16,990 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:21:16,990 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:21:16,990 INFO L791 eck$LassoCheckResult]: Stem: 152#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 153#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 158#L562 assume !(main_~length1~0 < 1); 159#L562-2 assume !(main_~length2~0 < 1); 160#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 161#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 165#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 154#L553-3 [2021-10-21 20:21:16,990 INFO L793 eck$LassoCheckResult]: Loop: 154#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 155#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 162#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 154#L553-3 [2021-10-21 20:21:16,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:16,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935627, now seen corresponding path program 1 times [2021-10-21 20:21:16,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:16,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719576761] [2021-10-21 20:21:16,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:16,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:17,011 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:17,034 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:17,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:17,035 INFO L82 PathProgramCache]: Analyzing trace with hash 58753, now seen corresponding path program 1 times [2021-10-21 20:21:17,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:17,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98273202] [2021-10-21 20:21:17,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:17,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:17,042 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:17,048 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:17,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:17,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1594172151, now seen corresponding path program 1 times [2021-10-21 20:21:17,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:17,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153152399] [2021-10-21 20:21:17,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:17,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:17,079 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:17,103 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:17,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:17,954 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:21:17,954 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:21:17,954 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:21:17,954 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:21:17,954 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:21:17,954 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:17,954 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:21:17,954 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:21:17,954 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-1.i_Iteration3_Lasso [2021-10-21 20:21:17,954 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:21:17,954 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:21:17,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:17,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:17,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:17,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:17,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:17,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:18,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:18,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:18,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:18,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:18,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:18,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:18,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:18,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:18,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:18,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:18,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:18,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:18,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:18,700 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:21:18,707 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:21:18,707 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:18,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:18,709 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:18,711 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 [2021-10-21 20:21:18,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:18,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:18,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:18,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:18,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:18,722 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:18,722 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:18,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 20:21:18,741 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:18,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:18,780 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:18,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:18,785 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:18,792 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 [2021-10-21 20:21:18,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:18,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:18,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:18,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:18,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:18,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:18,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:18,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 20:21:18,807 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:18,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:18,827 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:18,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:18,829 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:18,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 20:21:18,831 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 [2021-10-21 20:21:18,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:18,838 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:18,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:18,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:18,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:18,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:18,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:18,852 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:18,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:18,885 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:18,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:18,886 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:18,897 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 [2021-10-21 20:21:18,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:18,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:18,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:18,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:18,910 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:18,910 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:18,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 20:21:18,916 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:18,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-10-21 20:21:18,935 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:18,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:18,937 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:18,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 20:21:18,942 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 [2021-10-21 20:21:18,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:18,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:18,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:18,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:18,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:18,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:18,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:18,977 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:18,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:18,997 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:18,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:18,997 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:19,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 20:21:19,002 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 [2021-10-21 20:21:19,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:19,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:19,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:19,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:19,025 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:19,025 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:19,052 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:19,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:19,090 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:19,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:19,093 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:19,095 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 [2021-10-21 20:21:19,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:19,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:19,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:19,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:19,107 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:19,107 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:19,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 20:21:19,121 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:19,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:19,158 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:19,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:19,159 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:19,161 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 [2021-10-21 20:21:19,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:19,171 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 20:21:19,171 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2021-10-21 20:21:19,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:19,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 20:21:19,204 INFO L401 nArgumentSynthesizer]: We have 56 Motzkin's Theorem applications. [2021-10-21 20:21:19,204 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2021-10-21 20:21:19,264 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:19,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-21 20:21:19,286 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:19,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:19,286 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:19,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 20:21:19,288 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 [2021-10-21 20:21:19,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:19,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:19,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:19,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:19,298 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:19,298 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:19,321 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:19,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-21 20:21:19,340 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:19,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:19,341 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:19,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 20:21:19,344 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 [2021-10-21 20:21:19,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:19,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:19,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:19,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:19,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:19,353 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:19,378 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:19,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:19,415 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:19,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:19,417 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:19,419 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 [2021-10-21 20:21:19,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:19,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:19,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:19,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:19,436 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:19,436 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:19,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 20:21:19,457 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:21:19,487 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2021-10-21 20:21:19,487 INFO L444 ModelExtractionUtils]: 20 out of 28 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-10-21 20:21:19,487 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:19,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:19,509 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:19,573 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:21:19,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 20:21:19,603 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:21:19,603 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:21:19,603 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrpbrk_~scanp~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_2) = -1*ULTIMATE.start_cstrpbrk_~scanp~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_2 Supporting invariants [] [2021-10-21 20:21:19,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:19,700 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2021-10-21 20:21:19,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:19,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:21:19,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:21:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:19,803 WARN L261 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 20:21:19,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:21:19,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:21:19,852 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-21 20:21:19,853 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 18 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:19,894 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 18 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 38 transitions. Complement of second has 6 states. [2021-10-21 20:21:19,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 20:21:19,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:19,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-21 20:21:19,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-21 20:21:19,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:21:19,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-21 20:21:19,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:21:19,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 6 letters. [2021-10-21 20:21:19,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:21:19,898 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2021-10-21 20:21:19,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:21:19,905 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 21 states and 27 transitions. [2021-10-21 20:21:19,905 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-21 20:21:19,905 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-21 20:21:19,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2021-10-21 20:21:19,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:21:19,905 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-10-21 20:21:19,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2021-10-21 20:21:19,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. [2021-10-21 20:21:19,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:19,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2021-10-21 20:21:19,910 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-21 20:21:19,910 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-21 20:21:19,910 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 20:21:19,910 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2021-10-21 20:21:19,912 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:21:19,912 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:21:19,913 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:21:19,913 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:21:19,913 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:21:19,914 INFO L791 eck$LassoCheckResult]: Stem: 308#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 309#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 314#L562 assume !(main_~length1~0 < 1); 315#L562-2 assume !(main_~length2~0 < 1); 316#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 317#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 321#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 312#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 313#L553-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 319#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 322#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 310#L553-3 [2021-10-21 20:21:19,914 INFO L793 eck$LassoCheckResult]: Loop: 310#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 311#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 318#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 310#L553-3 [2021-10-21 20:21:19,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:19,914 INFO L82 PathProgramCache]: Analyzing trace with hash -2120273357, now seen corresponding path program 2 times [2021-10-21 20:21:19,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:19,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047770713] [2021-10-21 20:21:19,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:19,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:19,951 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:19,975 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:19,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:19,976 INFO L82 PathProgramCache]: Analyzing trace with hash 58753, now seen corresponding path program 2 times [2021-10-21 20:21:19,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:19,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658300719] [2021-10-21 20:21:19,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:19,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:19,981 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:19,985 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:19,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:19,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1020472847, now seen corresponding path program 1 times [2021-10-21 20:21:19,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:19,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620688826] [2021-10-21 20:21:19,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:19,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:20,060 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:21:20,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:21:20,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620688826] [2021-10-21 20:21:20,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620688826] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:21:20,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664768463] [2021-10-21 20:21:20,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:20,061 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:21:20,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:20,062 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:21:20,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-21 20:21:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:20,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-21 20:21:20,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:21:20,196 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-10-21 20:21:20,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 21 [2021-10-21 20:21:32,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-10-21 20:21:32,381 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:21:32,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664768463] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:21:32,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:21:32,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 10 [2021-10-21 20:21:32,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817954760] [2021-10-21 20:21:32,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:21:32,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 20:21:32,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=68, Unknown=1, NotChecked=0, Total=90 [2021-10-21 20:21:32,446 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:32,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:21:32,633 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2021-10-21 20:21:32,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:21:32,633 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-10-21 20:21:32,634 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:21:32,636 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 24 states and 28 transitions. [2021-10-21 20:21:32,636 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-21 20:21:32,637 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-21 20:21:32,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 28 transitions. [2021-10-21 20:21:32,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:21:32,637 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-10-21 20:21:32,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 28 transitions. [2021-10-21 20:21:32,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2021-10-21 20:21:32,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 16 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) [2021-10-21 20:21:32,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2021-10-21 20:21:32,639 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-10-21 20:21:32,639 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-10-21 20:21:32,639 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 20:21:32,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2021-10-21 20:21:32,669 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:21:32,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:21:32,669 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:21:32,670 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:21:32,670 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:21:32,670 INFO L791 eck$LassoCheckResult]: Stem: 417#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 418#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 423#L562 assume !(main_~length1~0 < 1); 424#L562-2 assume !(main_~length2~0 < 1); 427#L565-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 428#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 429#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 421#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 422#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 426#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 432#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 433#L553-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 430#L553-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 431#L552-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;havoc cstrpbrk_#t~mem3;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 419#L553-3 [2021-10-21 20:21:32,670 INFO L793 eck$LassoCheckResult]: Loop: 419#L553-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 420#L553-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 425#L554 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 419#L553-3 [2021-10-21 20:21:32,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:32,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1095399647, now seen corresponding path program 2 times [2021-10-21 20:21:32,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:32,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707329783] [2021-10-21 20:21:32,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:32,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:32,710 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:32,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:32,739 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:32,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:32,740 INFO L82 PathProgramCache]: Analyzing trace with hash 58753, now seen corresponding path program 3 times [2021-10-21 20:21:32,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:32,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103777776] [2021-10-21 20:21:32,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:32,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:32,745 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:32,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:32,748 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:32,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:32,749 INFO L82 PathProgramCache]: Analyzing trace with hash -110602269, now seen corresponding path program 3 times [2021-10-21 20:21:32,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:32,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420030627] [2021-10-21 20:21:32,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:32,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:32,765 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:32,786 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:34,052 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:21:34,052 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:21:34,052 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:21:34,052 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:21:34,052 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:21:34,052 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:34,052 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:21:34,052 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:21:34,052 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-1.i_Iteration5_Lasso [2021-10-21 20:21:34,052 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:21:34,053 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:21:34,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:34,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:35,570 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:21:35,570 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:21:35,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:35,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:35,583 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:35,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 20:21:35,585 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 [2021-10-21 20:21:35,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:35,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:35,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:35,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:35,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:35,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:35,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:35,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:35,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:35,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:35,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:35,617 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:35,619 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 [2021-10-21 20:21:35,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:35,627 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:35,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:35,628 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:35,628 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:35,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 20:21:35,628 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:35,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:35,645 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:35,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:35,681 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:35,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:35,682 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:35,689 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 [2021-10-21 20:21:35,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:35,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:35,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:35,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:35,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:35,699 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:35,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:35,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-21 20:21:35,713 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:35,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:35,747 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:35,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:35,748 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:35,750 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 [2021-10-21 20:21:35,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:35,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:35,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:35,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:35,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:35,760 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:35,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:35,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-21 20:21:35,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:35,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:35,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:35,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:35,805 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:35,807 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 [2021-10-21 20:21:35,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:35,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:35,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:35,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:35,818 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:35,818 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:35,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-21 20:21:35,822 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:35,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-21 20:21:35,841 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:35,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:35,842 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:35,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-21 20:21:35,843 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 [2021-10-21 20:21:35,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:35,850 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:35,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:35,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:35,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:35,851 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:35,851 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:35,858 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:35,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-21 20:21:35,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:35,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:35,878 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:35,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-21 20:21:35,880 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 [2021-10-21 20:21:35,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:35,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:35,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:35,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:35,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:35,888 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:35,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:35,889 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:35,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:35,911 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:35,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:35,912 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:35,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-21 20:21:35,919 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 [2021-10-21 20:21:35,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:35,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:35,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:35,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:35,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:35,928 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:35,930 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:35,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-21 20:21:35,950 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:35,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:35,950 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:35,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-21 20:21:35,952 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:35,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:35,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:35,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:35,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:35,978 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:35,978 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:36,000 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:21:36,020 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-10-21 20:21:36,020 INFO L444 ModelExtractionUtils]: 35 out of 49 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-10-21 20:21:36,020 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:36,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:36,022 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:36,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-21 20:21:36,022 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:21:36,030 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:21:36,030 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:21:36,030 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrpbrk_~scanp~0.base)_3, ULTIMATE.start_cstrpbrk_~scanp~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrpbrk_~scanp~0.base)_3 - 1*ULTIMATE.start_cstrpbrk_~scanp~0.offset Supporting invariants [] [2021-10-21 20:21:36,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:36,129 INFO L297 tatePredicateManager]: 30 out of 30 supporting invariants were superfluous and have been removed [2021-10-21 20:21:36,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:36,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:21:36,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:21:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:36,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 20:21:36,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:21:36,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:36,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:21:36,325 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 [2021-10-21 20:21:36,325 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-10-21 20:21:36,337 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 35 transitions. Complement of second has 5 states. [2021-10-21 20:21:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 20:21:36,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-10-21 20:21:36,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2021-10-21 20:21:36,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-21 20:21:36,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:21:36,339 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:21:36,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:36,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:21:36,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:21:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:36,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 20:21:36,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:21:36,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:21:36,456 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:21:36,457 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-10-21 20:21:36,473 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 29 states and 36 transitions. Complement of second has 5 states. [2021-10-21 20:21:36,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 20:21:36,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-10-21 20:21:36,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2021-10-21 20:21:36,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-21 20:21:36,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:21:36,475 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 20:21:36,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:36,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:21:36,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:21:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:36,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 20:21:36,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:21:36,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:21:36,589 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:21:36,589 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-10-21 20:21:36,600 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 24 states and 29 transitions. Complement of second has 4 states. [2021-10-21 20:21:36,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 20:21:36,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-10-21 20:21:36,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2021-10-21 20:21:36,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-21 20:21:36,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:21:36,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 17 letters. Loop has 3 letters. [2021-10-21 20:21:36,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:21:36,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 14 letters. Loop has 6 letters. [2021-10-21 20:21:36,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:21:36,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 29 transitions. [2021-10-21 20:21:36,603 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:21:36,603 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2021-10-21 20:21:36,603 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:21:36,603 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:21:36,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:21:36,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:21:36,604 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:21:36,604 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:21:36,604 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:21:36,604 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 20:21:36,604 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:21:36,604 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:21:36,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 20:21:36,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:21:36 BoogieIcfgContainer [2021-10-21 20:21:36,610 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:21:36,610 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:21:36,610 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:21:36,610 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:21:36,611 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:21:13" (3/4) ... [2021-10-21 20:21:36,614 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:21:36,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:21:36,615 INFO L168 Benchmark]: Toolchain (without parser) took 24382.50 ms. Allocated memory was 111.1 MB in the beginning and 144.7 MB in the end (delta: 33.6 MB). Free memory was 75.9 MB in the beginning and 88.0 MB in the end (delta: -12.1 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2021-10-21 20:21:36,615 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 73.4 MB. Free memory was 32.1 MB in the beginning and 32.0 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:21:36,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 486.14 ms. Allocated memory is still 111.1 MB. Free memory was 75.7 MB in the beginning and 80.9 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:21:36,616 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.48 ms. Allocated memory is still 111.1 MB. Free memory was 80.9 MB in the beginning and 79.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:21:36,617 INFO L168 Benchmark]: Boogie Preprocessor took 54.22 ms. Allocated memory is still 111.1 MB. Free memory was 79.4 MB in the beginning and 77.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:21:36,617 INFO L168 Benchmark]: RCFGBuilder took 390.95 ms. Allocated memory is still 111.1 MB. Free memory was 77.8 MB in the beginning and 67.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:21:36,618 INFO L168 Benchmark]: BuchiAutomizer took 23363.31 ms. Allocated memory was 111.1 MB in the beginning and 144.7 MB in the end (delta: 33.6 MB). Free memory was 67.3 MB in the beginning and 88.0 MB in the end (delta: -20.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:21:36,618 INFO L168 Benchmark]: Witness Printer took 3.53 ms. Allocated memory is still 144.7 MB. Free memory is still 88.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:21:36,621 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 73.4 MB. Free memory was 32.1 MB in the beginning and 32.0 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 486.14 ms. Allocated memory is still 111.1 MB. Free memory was 75.7 MB in the beginning and 80.9 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.48 ms. Allocated memory is still 111.1 MB. Free memory was 80.9 MB in the beginning and 79.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.22 ms. Allocated memory is still 111.1 MB. Free memory was 79.4 MB in the beginning and 77.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 390.95 ms. Allocated memory is still 111.1 MB. Free memory was 77.8 MB in the beginning and 67.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 23363.31 ms. Allocated memory was 111.1 MB in the beginning and 144.7 MB in the end (delta: 33.6 MB). Free memory was 67.3 MB in the beginning and 88.0 MB in the end (delta: -20.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * Witness Printer took 3.53 ms. Allocated memory is still 144.7 MB. Free memory is still 88.0 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * s1 + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * scanp and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[scanp] + -1 * scanp and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 23.3s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 22.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 17.7ms AutomataMinimizationTime, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 92 SDtfs, 84 SDslu, 55 SDs, 0 SdLazy, 102 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 118.6ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital220 mio100 ax108 hnf99 lsp89 ukn78 mio100 lsp32 div100 bol100 ite100 ukn100 eq196 hnf87 smp100 dnf235 smp90 tf100 neg94 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 106ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 56 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! [2021-10-21 20:21:36,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:36,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bf225-0047-4738-adbb-ed102d2086ab/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...