./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strrchr.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strrchr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa --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 b850f5453e922b3972aa9b5b79a1b07337c08d581cc5e6a2a56803408dc479cf --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 21:04:24,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 21:04:24,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 21:04:24,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 21:04:24,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 21:04:24,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 21:04:24,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 21:04:24,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 21:04:24,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 21:04:24,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 21:04:24,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 21:04:24,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 21:04:24,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 21:04:24,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 21:04:25,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 21:04:25,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 21:04:25,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 21:04:25,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 21:04:25,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 21:04:25,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 21:04:25,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 21:04:25,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 21:04:25,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 21:04:25,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 21:04:25,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 21:04:25,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 21:04:25,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 21:04:25,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 21:04:25,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 21:04:25,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 21:04:25,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 21:04:25,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 21:04:25,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 21:04:25,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 21:04:25,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 21:04:25,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 21:04:25,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 21:04:25,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 21:04:25,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 21:04:25,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 21:04:25,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 21:04:25,026 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 21:04:25,050 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 21:04:25,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 21:04:25,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 21:04:25,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 21:04:25,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 21:04:25,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 21:04:25,053 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 21:04:25,053 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 21:04:25,053 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 21:04:25,053 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 21:04:25,053 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 21:04:25,053 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 21:04:25,054 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 21:04:25,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 21:04:25,054 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 21:04:25,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 21:04:25,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 21:04:25,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 21:04:25,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 21:04:25,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 21:04:25,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 21:04:25,061 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 21:04:25,061 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 21:04:25,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 21:04:25,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 21:04:25,062 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 21:04:25,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 21:04:25,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 21:04:25,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 21:04:25,064 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 21:04:25,064 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_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b850f5453e922b3972aa9b5b79a1b07337c08d581cc5e6a2a56803408dc479cf [2021-12-06 21:04:25,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 21:04:25,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 21:04:25,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 21:04:25,288 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 21:04:25,289 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 21:04:25,290 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-dietlibc/strrchr.i [2021-12-06 21:04:25,332 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/data/f5600e836/01a48b39fd864d7f9d972eee03bc7848/FLAGc9d3c016f [2021-12-06 21:04:25,739 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 21:04:25,739 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/sv-benchmarks/c/termination-dietlibc/strrchr.i [2021-12-06 21:04:25,750 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/data/f5600e836/01a48b39fd864d7f9d972eee03bc7848/FLAGc9d3c016f [2021-12-06 21:04:25,760 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/data/f5600e836/01a48b39fd864d7f9d972eee03bc7848 [2021-12-06 21:04:25,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 21:04:25,763 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 21:04:25,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 21:04:25,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 21:04:25,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 21:04:25,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:04:25" (1/1) ... [2021-12-06 21:04:25,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51615595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:04:25, skipping insertion in model container [2021-12-06 21:04:25,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:04:25" (1/1) ... [2021-12-06 21:04:25,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 21:04:25,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 21:04:25,998 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:04:26,004 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 21:04:26,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:04:26,050 INFO L208 MainTranslator]: Completed translation [2021-12-06 21:04:26,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:04:26 WrapperNode [2021-12-06 21:04:26,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 21:04:26,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 21:04:26,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 21:04:26,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 21:04:26,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:04:26" (1/1) ... [2021-12-06 21:04:26,067 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:04:26" (1/1) ... [2021-12-06 21:04:26,083 INFO L137 Inliner]: procedures = 114, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 100 [2021-12-06 21:04:26,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 21:04:26,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 21:04:26,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 21:04:26,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 21:04:26,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:04:26" (1/1) ... [2021-12-06 21:04:26,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:04:26" (1/1) ... [2021-12-06 21:04:26,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:04:26" (1/1) ... [2021-12-06 21:04:26,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:04:26" (1/1) ... [2021-12-06 21:04:26,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:04:26" (1/1) ... [2021-12-06 21:04:26,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:04:26" (1/1) ... [2021-12-06 21:04:26,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:04:26" (1/1) ... [2021-12-06 21:04:26,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 21:04:26,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 21:04:26,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 21:04:26,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 21:04:26,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:04:26" (1/1) ... [2021-12-06 21:04:26,120 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:26,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:26,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:26,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 21:04:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 21:04:26,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 21:04:26,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 21:04:26,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 21:04:26,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 21:04:26,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 21:04:26,247 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 21:04:26,248 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 21:04:26,375 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 21:04:26,380 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 21:04:26,381 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 21:04:26,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:04:26 BoogieIcfgContainer [2021-12-06 21:04:26,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 21:04:26,383 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 21:04:26,384 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 21:04:26,386 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 21:04:26,387 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 21:04:26,387 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 09:04:25" (1/3) ... [2021-12-06 21:04:26,387 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41f36677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 09:04:26, skipping insertion in model container [2021-12-06 21:04:26,387 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 21:04:26,388 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:04:26" (2/3) ... [2021-12-06 21:04:26,388 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41f36677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 09:04:26, skipping insertion in model container [2021-12-06 21:04:26,388 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 21:04:26,388 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:04:26" (3/3) ... [2021-12-06 21:04:26,389 INFO L388 chiAutomizerObserver]: Analyzing ICFG strrchr.i [2021-12-06 21:04:26,419 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 21:04:26,419 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 21:04:26,419 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 21:04:26,419 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 21:04:26,420 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 21:04:26,420 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 21:04:26,420 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 21:04:26,420 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 21:04:26,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:04:26,444 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2021-12-06 21:04:26,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:04:26,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:04:26,448 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 21:04:26,448 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 21:04:26,448 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 21:04:26,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:04:26,450 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2021-12-06 21:04:26,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:04:26,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:04:26,450 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 21:04:26,450 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 21:04:26,455 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet17#1, main_#t~post16#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 13#L521true assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 14#L523-3true [2021-12-06 21:04:26,455 INFO L793 eck$LassoCheckResult]: Loop: 14#L523-3true assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 21#L523-2true main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 14#L523-3true [2021-12-06 21:04:26,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:26,459 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-12-06 21:04:26,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:26,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815277265] [2021-12-06 21:04:26,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:26,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:26,530 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:26,549 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:26,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:26,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2021-12-06 21:04:26,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:26,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566902667] [2021-12-06 21:04:26,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:26,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:26,560 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:26,566 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:26,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:26,568 INFO L85 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2021-12-06 21:04:26,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:26,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390753893] [2021-12-06 21:04:26,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:26,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:26,584 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:26,596 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:26,753 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 21:04:26,753 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 21:04:26,754 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 21:04:26,754 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 21:04:26,754 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 21:04:26,754 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:26,754 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 21:04:26,754 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 21:04:26,754 INFO L133 ssoRankerPreferences]: Filename of dumped script: strrchr.i_Iteration1_Lasso [2021-12-06 21:04:26,754 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 21:04:26,755 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 21:04:26,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:26,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:26,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:26,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:26,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:26,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:26,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:26,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:26,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:26,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:26,979 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 21:04:26,982 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 21:04:26,983 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:26,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:26,984 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:26,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 21:04:26,986 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 [2021-12-06 21:04:26,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:26,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:26,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:26,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:26,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:26,997 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:26,997 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:26,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:27,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 21:04:27,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:27,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:27,019 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:27,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 21:04:27,021 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 [2021-12-06 21:04:27,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:27,028 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:27,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:27,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:27,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:27,029 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:27,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:27,030 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:27,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 21:04:27,049 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:27,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:27,050 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:27,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 21:04:27,051 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 [2021-12-06 21:04:27,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:27,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:27,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:27,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:27,061 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:04:27,061 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:04:27,064 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:27,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 21:04:27,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:27,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:27,083 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:27,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 21:04:27,084 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 [2021-12-06 21:04:27,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:27,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:27,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:27,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:27,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:27,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:27,092 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:27,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:27,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 21:04:27,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:27,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:27,113 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:27,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 21:04:27,114 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 [2021-12-06 21:04:27,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:27,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:27,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:27,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:27,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:27,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:27,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:27,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:27,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 21:04:27,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:27,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:27,143 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:27,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 21:04:27,144 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 [2021-12-06 21:04:27,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:27,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:27,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:27,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:27,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:27,152 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:27,152 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:27,153 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:27,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 21:04:27,172 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:27,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:27,173 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:27,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 21:04:27,174 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 [2021-12-06 21:04:27,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:27,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:27,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:27,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:27,184 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:04:27,184 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:04:27,187 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:27,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 21:04:27,206 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:27,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:27,207 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:27,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 21:04:27,208 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 [2021-12-06 21:04:27,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:27,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:27,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:27,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:27,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:27,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:27,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:27,217 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:27,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 21:04:27,235 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:27,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:27,236 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:27,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 21:04:27,239 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 [2021-12-06 21:04:27,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:27,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:27,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:27,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:27,249 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:04:27,249 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:04:27,254 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:27,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 21:04:27,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:27,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:27,274 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:27,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 21:04:27,275 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 [2021-12-06 21:04:27,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:27,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:27,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:27,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:27,287 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:04:27,287 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:04:27,292 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:27,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-06 21:04:27,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:27,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:27,325 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:27,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 21:04:27,326 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 [2021-12-06 21:04:27,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:27,333 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:27,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:27,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:27,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:27,334 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:27,334 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:27,335 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:27,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-06 21:04:27,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:27,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:27,355 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:27,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 21:04:27,356 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 [2021-12-06 21:04:27,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:27,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:27,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:27,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:27,364 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:04:27,364 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:04:27,367 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:27,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-06 21:04:27,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:27,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:27,387 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:27,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 21:04:27,388 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 [2021-12-06 21:04:27,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:27,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:27,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:27,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:27,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:04:27,401 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:04:27,413 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 21:04:27,432 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-12-06 21:04:27,432 INFO L444 ModelExtractionUtils]: 14 out of 22 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-12-06 21:04:27,433 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:27,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:27,434 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:27,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 21:04:27,438 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 21:04:27,452 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 21:04:27,452 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 21:04:27,453 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~in_len~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~in_len~0#1 Supporting invariants [] [2021-12-06 21:04:27,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 21:04:27,488 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-12-06 21:04:27,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:04:27,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 21:04:27,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:04:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:04:27,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 21:04:27,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:04:27,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:04:27,572 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 [2021-12-06 21:04:27,573 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-12-06 21:04:27,611 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 65 states and 97 transitions. Complement of second has 7 states. [2021-12-06 21:04:27,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 21:04:27,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-12-06 21:04:27,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 65 transitions. [2021-12-06 21:04:27,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 65 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-06 21:04:27,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:04:27,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 65 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-06 21:04:27,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:04:27,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 65 transitions. Stem has 3 letters. Loop has 4 letters. [2021-12-06 21:04:27,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:04:27,619 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 97 transitions. [2021-12-06 21:04:27,622 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-06 21:04:27,624 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 20 states and 26 transitions. [2021-12-06 21:04:27,625 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-12-06 21:04:27,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-12-06 21:04:27,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2021-12-06 21:04:27,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:04:27,625 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-06 21:04:27,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2021-12-06 21:04:27,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-12-06 21:04:27,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:04:27,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-12-06 21:04:27,643 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-06 21:04:27,643 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-06 21:04:27,643 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 21:04:27,643 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2021-12-06 21:04:27,643 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-06 21:04:27,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:04:27,643 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:04:27,644 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-06 21:04:27,644 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:04:27,644 INFO L791 eck$LassoCheckResult]: Stem: 143#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 144#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet17#1, main_#t~post16#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 152#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 154#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 145#L523-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 146#L511-2 [2021-12-06 21:04:27,644 INFO L793 eck$LassoCheckResult]: Loop: 146#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 160#L512 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 149#L512-2 call strrchr_#t~mem3#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 147#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 148#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 161#L513-2 call strrchr_#t~mem6#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 158#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 159#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 162#L514-2 call strrchr_#t~mem9#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 155#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 153#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 150#L515-2 call strrchr_#t~mem12#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 151#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 146#L511-2 [2021-12-06 21:04:27,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:27,645 INFO L85 PathProgramCache]: Analyzing trace with hash 28695884, now seen corresponding path program 1 times [2021-12-06 21:04:27,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:27,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590094369] [2021-12-06 21:04:27,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:27,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:27,659 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:27,672 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:27,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:27,672 INFO L85 PathProgramCache]: Analyzing trace with hash 964144916, now seen corresponding path program 1 times [2021-12-06 21:04:27,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:27,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083391639] [2021-12-06 21:04:27,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:27,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:27,694 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:27,710 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:27,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:27,710 INFO L85 PathProgramCache]: Analyzing trace with hash 149619625, now seen corresponding path program 1 times [2021-12-06 21:04:27,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:27,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630976461] [2021-12-06 21:04:27,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:27,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:27,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 21:04:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:04:27,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:04:27,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:04:27,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630976461] [2021-12-06 21:04:27,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630976461] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:04:27,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:04:27,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 21:04:27,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989974655] [2021-12-06 21:04:27,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:04:28,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:04:28,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 21:04:28,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 21:04:28,024 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 8 Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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) [2021-12-06 21:04:28,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:04:28,091 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2021-12-06 21:04:28,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 21:04:28,092 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2021-12-06 21:04:28,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-06 21:04:28,094 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 21 states and 26 transitions. [2021-12-06 21:04:28,094 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-12-06 21:04:28,094 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-12-06 21:04:28,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. [2021-12-06 21:04:28,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:04:28,094 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2021-12-06 21:04:28,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. [2021-12-06 21:04:28,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-12-06 21:04:28,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.25) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:04:28,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2021-12-06 21:04:28,096 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-12-06 21:04:28,096 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-12-06 21:04:28,096 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 21:04:28,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2021-12-06 21:04:28,097 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-06 21:04:28,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:04:28,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:04:28,097 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:04:28,097 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:04:28,097 INFO L791 eck$LassoCheckResult]: Stem: 204#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 205#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet17#1, main_#t~post16#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 214#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 216#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 217#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 218#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 206#L523-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 207#L511-2 [2021-12-06 21:04:28,097 INFO L793 eck$LassoCheckResult]: Loop: 207#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 221#L512 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 210#L512-2 call strrchr_#t~mem3#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 208#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 209#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 222#L513-2 call strrchr_#t~mem6#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 219#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 220#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 223#L514-2 call strrchr_#t~mem9#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 215#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 213#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 211#L515-2 call strrchr_#t~mem12#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 212#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 207#L511-2 [2021-12-06 21:04:28,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:28,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1806996910, now seen corresponding path program 1 times [2021-12-06 21:04:28,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:28,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133366250] [2021-12-06 21:04:28,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:28,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:28,109 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:28,124 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:28,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:28,124 INFO L85 PathProgramCache]: Analyzing trace with hash 964144916, now seen corresponding path program 2 times [2021-12-06 21:04:28,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:28,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630699011] [2021-12-06 21:04:28,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:28,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:28,134 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:28,144 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:28,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:28,145 INFO L85 PathProgramCache]: Analyzing trace with hash 729709191, now seen corresponding path program 1 times [2021-12-06 21:04:28,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:28,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027873292] [2021-12-06 21:04:28,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:28,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:04:28,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:04:28,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:04:28,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027873292] [2021-12-06 21:04:28,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027873292] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 21:04:28,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821944555] [2021-12-06 21:04:28,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:28,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:04:28,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:28,224 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:04:28,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-06 21:04:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:04:28,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-06 21:04:28,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:04:28,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 21:04:28,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:04:28,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 21:04:28,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:04:28,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821944555] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 21:04:28,483 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 21:04:28,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 16 [2021-12-06 21:04:28,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871128714] [2021-12-06 21:04:28,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 21:04:28,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:04:28,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-06 21:04:28,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-12-06 21:04:28,642 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. cyclomatic complexity: 7 Second operand has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:04:28,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:04:28,742 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-12-06 21:04:28,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 21:04:28,743 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2021-12-06 21:04:28,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-06 21:04:28,745 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 23 states and 28 transitions. [2021-12-06 21:04:28,745 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-12-06 21:04:28,745 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-12-06 21:04:28,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 28 transitions. [2021-12-06 21:04:28,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:04:28,745 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-12-06 21:04:28,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 28 transitions. [2021-12-06 21:04:28,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-12-06 21:04:28,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:04:28,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-12-06 21:04:28,747 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-12-06 21:04:28,747 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-12-06 21:04:28,747 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 21:04:28,747 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2021-12-06 21:04:28,748 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-06 21:04:28,748 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:04:28,748 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:04:28,748 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2021-12-06 21:04:28,748 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:04:28,748 INFO L791 eck$LassoCheckResult]: Stem: 396#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 397#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet17#1, main_#t~post16#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 405#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 408#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 409#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 410#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 411#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 417#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 398#L523-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 399#L511-2 [2021-12-06 21:04:28,748 INFO L793 eck$LassoCheckResult]: Loop: 399#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 414#L512 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 402#L512-2 call strrchr_#t~mem3#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 400#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 401#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 415#L513-2 call strrchr_#t~mem6#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 412#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 413#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 416#L514-2 call strrchr_#t~mem9#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 407#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 406#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 403#L515-2 call strrchr_#t~mem12#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 404#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 399#L511-2 [2021-12-06 21:04:28,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:28,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1357299088, now seen corresponding path program 2 times [2021-12-06 21:04:28,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:28,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525253889] [2021-12-06 21:04:28,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:28,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:28,763 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:28,776 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:28,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:28,777 INFO L85 PathProgramCache]: Analyzing trace with hash 964144916, now seen corresponding path program 3 times [2021-12-06 21:04:28,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:28,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783477285] [2021-12-06 21:04:28,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:28,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:28,787 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:28,797 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:28,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:28,798 INFO L85 PathProgramCache]: Analyzing trace with hash -149966363, now seen corresponding path program 2 times [2021-12-06 21:04:28,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:28,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773731112] [2021-12-06 21:04:28,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:28,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:04:28,892 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:04:28,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:04:28,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773731112] [2021-12-06 21:04:28,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773731112] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 21:04:28,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609661109] [2021-12-06 21:04:28,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 21:04:28,893 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:04:28,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:28,894 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:04:28,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-06 21:04:29,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 21:04:29,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 21:04:29,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 27 conjunts are in the unsatisfiable core [2021-12-06 21:04:29,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:04:29,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 21:04:29,191 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:04:29,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 21:04:29,278 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:04:29,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609661109] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 21:04:29,278 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 21:04:29,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 21 [2021-12-06 21:04:29,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319254223] [2021-12-06 21:04:29,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 21:04:29,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:04:29,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-06 21:04:29,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2021-12-06 21:04:29,421 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. cyclomatic complexity: 7 Second operand has 21 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 21 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:04:29,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:04:29,530 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2021-12-06 21:04:29,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 21:04:29,531 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 44 transitions. [2021-12-06 21:04:29,531 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-06 21:04:29,532 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 25 states and 30 transitions. [2021-12-06 21:04:29,532 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-12-06 21:04:29,532 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-12-06 21:04:29,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2021-12-06 21:04:29,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:04:29,532 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2021-12-06 21:04:29,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2021-12-06 21:04:29,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2021-12-06 21:04:29,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:04:29,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2021-12-06 21:04:29,534 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-12-06 21:04:29,534 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-12-06 21:04:29,534 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 21:04:29,534 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2021-12-06 21:04:29,534 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-06 21:04:29,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:04:29,534 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:04:29,535 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1, 1] [2021-12-06 21:04:29,535 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:04:29,535 INFO L791 eck$LassoCheckResult]: Stem: 616#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 617#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet17#1, main_#t~post16#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 624#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 625#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 626#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 635#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 637#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 627#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 628#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 636#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 614#L523-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 615#L511-2 [2021-12-06 21:04:29,535 INFO L793 eck$LassoCheckResult]: Loop: 615#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 632#L512 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 620#L512-2 call strrchr_#t~mem3#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 618#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 619#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 633#L513-2 call strrchr_#t~mem6#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 630#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 631#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 634#L514-2 call strrchr_#t~mem9#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 629#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 623#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 621#L515-2 call strrchr_#t~mem12#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 622#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 615#L511-2 [2021-12-06 21:04:29,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:29,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1305578254, now seen corresponding path program 3 times [2021-12-06 21:04:29,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:29,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200088025] [2021-12-06 21:04:29,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:29,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:29,544 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:29,552 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:29,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:29,553 INFO L85 PathProgramCache]: Analyzing trace with hash 964144916, now seen corresponding path program 4 times [2021-12-06 21:04:29,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:29,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025804710] [2021-12-06 21:04:29,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:29,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:29,558 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:29,565 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:29,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:29,565 INFO L85 PathProgramCache]: Analyzing trace with hash 590383555, now seen corresponding path program 3 times [2021-12-06 21:04:29,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:29,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383401041] [2021-12-06 21:04:29,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:29,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:04:29,715 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:04:29,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:04:29,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383401041] [2021-12-06 21:04:29,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383401041] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 21:04:29,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519457561] [2021-12-06 21:04:29,716 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 21:04:29,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:04:29,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:29,716 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:04:29,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-06 21:04:29,767 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-12-06 21:04:29,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 21:04:29,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 43 conjunts are in the unsatisfiable core [2021-12-06 21:04:29,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:04:29,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 21:04:29,887 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 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 21:04:30,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 21:04:30,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 21:04:30,579 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 21:04:30,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 14 [2021-12-06 21:04:30,601 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:04:30,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 21:04:30,874 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 38 treesize of output 32 [2021-12-06 21:04:30,879 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 21:04:30,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 77 [2021-12-06 21:04:31,266 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:04:31,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519457561] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 21:04:31,266 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 21:04:31,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 38 [2021-12-06 21:04:31,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551517507] [2021-12-06 21:04:31,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 21:04:31,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:04:31,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-12-06 21:04:31,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1264, Unknown=1, NotChecked=0, Total=1406 [2021-12-06 21:04:31,407 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. cyclomatic complexity: 7 Second operand has 38 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 38 states have internal predecessors, (63), 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) [2021-12-06 21:04:31,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:04:31,798 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2021-12-06 21:04:31,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 21:04:31,799 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 48 transitions. [2021-12-06 21:04:31,799 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-06 21:04:31,800 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 48 transitions. [2021-12-06 21:04:31,800 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-12-06 21:04:31,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-12-06 21:04:31,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 48 transitions. [2021-12-06 21:04:31,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:04:31,800 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2021-12-06 21:04:31,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 48 transitions. [2021-12-06 21:04:31,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2021-12-06 21:04:31,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.236842105263158) internal successors, (47), 37 states have internal predecessors, (47), 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) [2021-12-06 21:04:31,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2021-12-06 21:04:31,803 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2021-12-06 21:04:31,803 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2021-12-06 21:04:31,803 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-06 21:04:31,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 47 transitions. [2021-12-06 21:04:31,803 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-06 21:04:31,803 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:04:31,803 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:04:31,804 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:04:31,804 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:04:31,804 INFO L791 eck$LassoCheckResult]: Stem: 884#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 885#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet17#1, main_#t~post16#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 893#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 894#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 895#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 896#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 897#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 919#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 917#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 915#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 882#L523-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 883#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 901#L512 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 888#L512-2 [2021-12-06 21:04:31,804 INFO L793 eck$LassoCheckResult]: Loop: 888#L512-2 call strrchr_#t~mem3#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 886#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 887#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 905#L513-2 call strrchr_#t~mem6#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 910#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 909#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 904#L514-2 call strrchr_#t~mem9#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 908#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 907#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 889#L515-2 call strrchr_#t~mem12#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 890#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 891#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 906#L512 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 888#L512-2 [2021-12-06 21:04:31,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:31,804 INFO L85 PathProgramCache]: Analyzing trace with hash -530250729, now seen corresponding path program 1 times [2021-12-06 21:04:31,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:31,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613993085] [2021-12-06 21:04:31,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:31,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:31,819 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:31,832 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:31,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:31,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1358949434, now seen corresponding path program 5 times [2021-12-06 21:04:31,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:31,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949520822] [2021-12-06 21:04:31,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:31,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:31,841 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:31,849 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:31,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:31,850 INFO L85 PathProgramCache]: Analyzing trace with hash -588203036, now seen corresponding path program 1 times [2021-12-06 21:04:31,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:31,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769899607] [2021-12-06 21:04:31,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:31,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:04:31,948 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:04:31,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:04:31,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769899607] [2021-12-06 21:04:31,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769899607] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 21:04:31,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86529918] [2021-12-06 21:04:31,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:31,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:04:31,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:31,949 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:04:31,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-12-06 21:04:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:04:31,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 27 conjunts are in the unsatisfiable core [2021-12-06 21:04:31,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:04:32,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 21:04:32,160 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:04:32,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 21:04:32,272 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:04:32,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86529918] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 21:04:32,272 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 21:04:32,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 28 [2021-12-06 21:04:32,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684384260] [2021-12-06 21:04:32,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 21:04:32,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:04:32,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-12-06 21:04:32,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2021-12-06 21:04:32,449 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. cyclomatic complexity: 11 Second operand has 28 states, 28 states have (on average 2.1785714285714284) internal successors, (61), 28 states have internal predecessors, (61), 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) [2021-12-06 21:04:32,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:04:32,678 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2021-12-06 21:04:32,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 21:04:32,678 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 62 transitions. [2021-12-06 21:04:32,679 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-06 21:04:32,679 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 27 states and 32 transitions. [2021-12-06 21:04:32,680 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-12-06 21:04:32,680 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-12-06 21:04:32,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 32 transitions. [2021-12-06 21:04:32,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:04:32,680 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2021-12-06 21:04:32,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 32 transitions. [2021-12-06 21:04:32,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-12-06 21:04:32,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 25 states have internal predecessors, (31), 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) [2021-12-06 21:04:32,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2021-12-06 21:04:32,681 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-12-06 21:04:32,681 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-12-06 21:04:32,681 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-06 21:04:32,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 31 transitions. [2021-12-06 21:04:32,682 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-06 21:04:32,682 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:04:32,682 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:04:32,682 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1, 1] [2021-12-06 21:04:32,682 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:04:32,682 INFO L791 eck$LassoCheckResult]: Stem: 1172#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1173#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet17#1, main_#t~post16#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 1182#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 1184#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 1185#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1186#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 1187#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1193#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 1197#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1196#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 1195#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1194#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 1174#L523-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 1175#L511-2 [2021-12-06 21:04:32,682 INFO L793 eck$LassoCheckResult]: Loop: 1175#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1190#L512 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1178#L512-2 call strrchr_#t~mem3#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1176#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1177#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1192#L513-2 call strrchr_#t~mem6#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1188#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1189#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1191#L514-2 call strrchr_#t~mem9#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1183#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1181#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1179#L515-2 call strrchr_#t~mem12#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1180#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 1175#L511-2 [2021-12-06 21:04:32,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:32,683 INFO L85 PathProgramCache]: Analyzing trace with hash -530195500, now seen corresponding path program 4 times [2021-12-06 21:04:32,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:32,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595625908] [2021-12-06 21:04:32,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:32,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:32,690 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:32,697 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:32,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:32,698 INFO L85 PathProgramCache]: Analyzing trace with hash 964144916, now seen corresponding path program 6 times [2021-12-06 21:04:32,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:32,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369086865] [2021-12-06 21:04:32,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:32,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:32,702 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:32,707 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:32,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:32,708 INFO L85 PathProgramCache]: Analyzing trace with hash -897916383, now seen corresponding path program 4 times [2021-12-06 21:04:32,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:32,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642267086] [2021-12-06 21:04:32,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:32,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:32,725 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:32,739 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:33,847 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 21:04:33,847 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 21:04:33,848 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 21:04:33,848 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 21:04:33,848 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 21:04:33,848 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:33,848 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 21:04:33,848 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 21:04:33,848 INFO L133 ssoRankerPreferences]: Filename of dumped script: strrchr.i_Iteration7_Lasso [2021-12-06 21:04:33,848 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 21:04:33,848 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 21:04:33,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:33,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:34,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:34,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:34,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:34,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:34,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:34,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:34,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:34,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:34,751 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 21:04:34,751 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 21:04:34,751 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:34,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:34,752 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:34,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 21:04:34,753 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 [2021-12-06 21:04:34,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:34,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:34,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:34,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:34,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:34,762 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:34,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:34,763 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:34,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-06 21:04:34,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:34,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:34,782 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:34,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 21:04:34,783 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 [2021-12-06 21:04:34,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:34,790 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:34,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:34,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:34,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:34,791 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:34,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:34,792 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:34,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-06 21:04:34,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:34,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:34,811 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:34,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 21:04:34,812 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 [2021-12-06 21:04:34,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:34,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:34,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:34,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:34,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:34,819 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:34,819 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:34,820 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:34,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 21:04:34,839 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:34,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:34,839 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:34,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 21:04:34,840 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 21:04:34,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:34,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:34,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:34,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:34,848 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:04:34,848 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:04:34,854 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:34,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-06 21:04:34,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:34,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:34,877 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:34,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 21:04:34,878 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 [2021-12-06 21:04:34,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:34,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:34,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:34,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:34,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:34,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:34,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:34,887 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:34,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-06 21:04:34,906 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:34,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:34,906 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:34,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-06 21:04:34,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 21:04:34,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:34,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:34,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:34,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:34,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:34,916 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:34,916 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:34,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:34,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-06 21:04:34,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:34,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:34,936 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:34,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-06 21:04:34,937 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 [2021-12-06 21:04:34,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:34,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:34,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:34,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:34,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:34,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:34,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:34,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:34,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-06 21:04:34,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:34,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:34,964 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:34,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-06 21:04:34,966 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 [2021-12-06 21:04:34,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:34,973 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:34,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:34,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:34,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:34,974 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:34,974 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:34,975 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:34,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-12-06 21:04:34,994 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:34,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:34,995 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:34,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-06 21:04:34,997 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 [2021-12-06 21:04:35,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:35,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:35,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:35,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:35,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:35,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:35,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:35,006 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:35,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-06 21:04:35,024 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:35,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:35,025 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:35,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-06 21:04:35,026 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 [2021-12-06 21:04:35,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:35,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:35,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:35,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:35,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:35,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:35,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:35,036 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:35,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-06 21:04:35,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:35,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:35,054 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:35,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-06 21:04:35,056 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 [2021-12-06 21:04:35,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:35,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:35,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:35,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:35,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:35,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:35,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:35,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:35,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-06 21:04:35,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:35,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:35,083 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:35,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-06 21:04:35,085 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 [2021-12-06 21:04:35,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:35,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:35,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:35,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:35,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:35,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:35,092 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:35,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:35,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-06 21:04:35,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:35,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:35,113 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:35,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-06 21:04:35,114 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 [2021-12-06 21:04:35,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:35,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:35,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:35,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:35,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:35,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:35,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:35,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:35,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-06 21:04:35,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:35,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:35,151 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:35,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-06 21:04:35,153 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 [2021-12-06 21:04:35,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:35,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:35,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:35,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:35,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:35,160 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:35,160 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:35,161 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:35,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-06 21:04:35,180 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:35,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:35,181 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:35,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-06 21:04:35,183 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 [2021-12-06 21:04:35,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:35,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:35,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:35,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:35,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:35,191 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:35,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:35,192 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:35,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-06 21:04:35,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:35,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:35,210 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:35,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-06 21:04:35,212 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 [2021-12-06 21:04:35,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:35,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:35,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:35,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:35,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:35,220 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:35,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:35,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:35,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-12-06 21:04:35,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:35,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:35,240 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:35,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-06 21:04:35,241 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 [2021-12-06 21:04:35,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:35,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:35,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:35,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:35,250 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:04:35,250 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:04:35,252 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:35,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-12-06 21:04:35,270 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:35,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:35,271 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:35,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-06 21:04:35,272 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 [2021-12-06 21:04:35,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:35,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:35,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:35,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:35,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:35,279 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:35,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:35,280 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:35,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-12-06 21:04:35,298 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:35,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:35,299 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:35,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-06 21:04:35,300 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 [2021-12-06 21:04:35,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:35,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:35,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:35,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:35,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:35,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:35,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:35,308 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:35,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-12-06 21:04:35,327 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:35,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:35,327 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:35,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-06 21:04:35,328 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 [2021-12-06 21:04:35,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:35,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:35,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:35,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:35,338 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:04:35,338 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:04:35,345 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:35,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-12-06 21:04:35,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:35,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:35,363 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:35,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-06 21:04:35,366 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 [2021-12-06 21:04:35,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:35,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:35,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:35,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:35,378 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:04:35,378 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:04:35,388 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 21:04:35,406 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-12-06 21:04:35,406 INFO L444 ModelExtractionUtils]: 19 out of 34 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-12-06 21:04:35,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:35,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:35,407 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:35,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-06 21:04:35,408 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 21:04:35,416 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-06 21:04:35,416 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 21:04:35,416 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strrchr_~t#1.offset) = -1*ULTIMATE.start_strrchr_~t#1.offset + 4 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_main_#t~malloc15#1.base)_2 + 5 >= 0] [2021-12-06 21:04:35,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-12-06 21:04:35,483 INFO L297 tatePredicateManager]: 19 out of 21 supporting invariants were superfluous and have been removed [2021-12-06 21:04:35,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:04:35,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-06 21:04:35,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:04:35,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 21:04:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:04:35,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-06 21:04:35,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:04:35,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:04:35,712 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 4 loop predicates [2021-12-06 21:04:35,713 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 31 transitions. cyclomatic complexity: 7 Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:04:35,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-12-06 21:04:35,826 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 31 transitions. cyclomatic complexity: 7. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 58 states and 76 transitions. Complement of second has 14 states. [2021-12-06 21:04:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 7 stem states 2 non-accepting loop states 2 accepting loop states [2021-12-06 21:04:35,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:04:35,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 39 transitions. [2021-12-06 21:04:35,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 39 transitions. Stem has 13 letters. Loop has 13 letters. [2021-12-06 21:04:35,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:04:35,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 39 transitions. Stem has 26 letters. Loop has 13 letters. [2021-12-06 21:04:35,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:04:35,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 39 transitions. Stem has 13 letters. Loop has 26 letters. [2021-12-06 21:04:35,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:04:35,829 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 76 transitions. [2021-12-06 21:04:35,830 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-06 21:04:35,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 31 states and 37 transitions. [2021-12-06 21:04:35,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-12-06 21:04:35,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-12-06 21:04:35,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 37 transitions. [2021-12-06 21:04:35,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:04:35,832 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-12-06 21:04:35,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 37 transitions. [2021-12-06 21:04:35,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2021-12-06 21:04:35,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 27 states have internal predecessors, (33), 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) [2021-12-06 21:04:35,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2021-12-06 21:04:35,834 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-12-06 21:04:35,834 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-12-06 21:04:35,834 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-06 21:04:35,834 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 33 transitions. [2021-12-06 21:04:35,835 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-06 21:04:35,835 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:04:35,835 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:04:35,835 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1] [2021-12-06 21:04:35,835 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:04:35,835 INFO L791 eck$LassoCheckResult]: Stem: 1475#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1476#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet14#1, main_#t~malloc15#1.base, main_#t~malloc15#1.offset, main_#t~nondet17#1, main_#t~post16#1, main_~i~0#1, main_#t~nondet18#1, main_#t~ret19#1.base, main_#t~ret19#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;main_~in_len~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1; 1482#L521 assume !(main_~in_len~0#1 < 1);call main_#t~malloc15#1.base, main_#t~malloc15#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc15#1.base, main_#t~malloc15#1.offset;main_~i~0#1 := 0; 1484#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 1485#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1486#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 1487#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1494#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 1500#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1499#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 1498#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1497#L523-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet17#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet17#1; 1496#L523-2 main_#t~post16#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 1495#L523-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 1473#L523-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~the_int~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := main_~in~0#1.base, main_~in~0#1.offset, main_~the_int~0#1;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_#t~mem5#1, strrchr_#t~mem6#1, strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset, strrchr_#t~mem8#1, strrchr_#t~mem9#1, strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset, strrchr_#t~mem11#1, strrchr_#t~mem12#1, strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 1474#L511-2 [2021-12-06 21:04:35,835 INFO L793 eck$LassoCheckResult]: Loop: 1474#L511-2 assume !false;call strrchr_#t~mem2#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1491#L512 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1479#L512-2 call strrchr_#t~mem3#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1477#L512-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset;call strrchr_#t~mem5#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1478#L513 assume strrchr_#t~mem5#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem5#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1492#L513-2 call strrchr_#t~mem6#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1489#L513-3 assume !(0 == strrchr_#t~mem6#1);havoc strrchr_#t~mem6#1;strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre7#1.base, strrchr_#t~pre7#1.offset;call strrchr_#t~mem8#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1490#L514 assume strrchr_#t~mem8#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem8#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1493#L514-2 call strrchr_#t~mem9#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1488#L514-3 assume !(0 == strrchr_#t~mem9#1);havoc strrchr_#t~mem9#1;strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre10#1.base, strrchr_#t~pre10#1.offset;call strrchr_#t~mem11#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1483#L515 assume strrchr_#t~mem11#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem11#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1480#L515-2 call strrchr_#t~mem12#1 := read~int(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1481#L515-3 assume !(0 == strrchr_#t~mem12#1);havoc strrchr_#t~mem12#1;strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre13#1.base, strrchr_#t~pre13#1.offset; 1474#L511-2 [2021-12-06 21:04:35,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:35,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1583288886, now seen corresponding path program 5 times [2021-12-06 21:04:35,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:35,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415152953] [2021-12-06 21:04:35,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:35,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:35,844 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:35,854 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:35,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:35,855 INFO L85 PathProgramCache]: Analyzing trace with hash 964144916, now seen corresponding path program 7 times [2021-12-06 21:04:35,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:35,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525843836] [2021-12-06 21:04:35,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:35,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:35,861 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:35,868 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:35,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:35,868 INFO L85 PathProgramCache]: Analyzing trace with hash -930047233, now seen corresponding path program 5 times [2021-12-06 21:04:35,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:04:35,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724245686] [2021-12-06 21:04:35,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:04:35,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:04:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:35,888 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:04:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:04:35,903 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:04:37,275 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 21:04:37,275 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 21:04:37,275 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 21:04:37,275 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 21:04:37,275 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 21:04:37,275 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:37,275 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 21:04:37,275 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 21:04:37,275 INFO L133 ssoRankerPreferences]: Filename of dumped script: strrchr.i_Iteration8_Lasso [2021-12-06 21:04:37,275 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 21:04:37,275 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 21:04:37,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:37,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:04:38,238 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 21:04:38,238 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 21:04:38,238 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,239 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-12-06 21:04:38,240 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 [2021-12-06 21:04:38,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,247 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,248 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,248 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,249 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-12-06 21:04:38,267 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,268 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-06 21:04:38,269 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 [2021-12-06 21:04:38,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,276 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,277 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-12-06 21:04:38,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,296 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-06 21:04:38,298 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 [2021-12-06 21:04:38,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,305 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,306 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,306 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,307 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-12-06 21:04:38,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,326 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-12-06 21:04:38,328 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 [2021-12-06 21:04:38,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,335 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,336 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-12-06 21:04:38,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,355 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-12-06 21:04:38,357 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 [2021-12-06 21:04:38,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,364 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,365 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,365 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,366 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-12-06 21:04:38,387 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,388 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-12-06 21:04:38,389 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 [2021-12-06 21:04:38,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,396 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,397 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,397 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,398 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-12-06 21:04:38,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,416 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-12-06 21:04:38,418 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 [2021-12-06 21:04:38,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,426 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:04:38,426 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:04:38,428 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-12-06 21:04:38,446 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,447 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-12-06 21:04:38,448 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 [2021-12-06 21:04:38,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,455 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,455 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,456 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-12-06 21:04:38,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,475 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-12-06 21:04:38,476 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 [2021-12-06 21:04:38,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,484 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-12-06 21:04:38,503 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,503 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-12-06 21:04:38,504 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 [2021-12-06 21:04:38,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-12-06 21:04:38,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,532 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-12-06 21:04:38,533 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 [2021-12-06 21:04:38,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,540 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,541 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-12-06 21:04:38,559 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,560 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-12-06 21:04:38,561 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 [2021-12-06 21:04:38,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,568 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,569 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-12-06 21:04:38,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,588 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-12-06 21:04:38,590 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 [2021-12-06 21:04:38,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-12-06 21:04:38,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,617 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-12-06 21:04:38,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 21:04:38,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,627 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,629 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-12-06 21:04:38,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,647 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-12-06 21:04:38,649 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 [2021-12-06 21:04:38,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,656 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,656 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,657 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-12-06 21:04:38,675 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,676 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-12-06 21:04:38,678 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 [2021-12-06 21:04:38,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,686 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,686 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-12-06 21:04:38,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,705 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-12-06 21:04:38,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 21:04:38,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,715 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,715 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,715 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-12-06 21:04:38,734 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,735 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-12-06 21:04:38,736 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 [2021-12-06 21:04:38,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,744 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,745 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-12-06 21:04:38,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,763 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-12-06 21:04:38,765 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 [2021-12-06 21:04:38,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,772 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,772 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,774 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-12-06 21:04:38,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,792 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-12-06 21:04:38,797 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 [2021-12-06 21:04:38,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,804 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,805 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-12-06 21:04:38,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,823 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-12-06 21:04:38,825 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 [2021-12-06 21:04:38,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,832 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:04:38,833 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:04:38,835 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-12-06 21:04:38,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,854 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-12-06 21:04:38,855 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 [2021-12-06 21:04:38,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,862 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,864 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-12-06 21:04:38,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,882 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-12-06 21:04:38,883 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 [2021-12-06 21:04:38,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:04:38,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:04:38,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:04:38,892 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-12-06 21:04:38,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,911 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-12-06 21:04:38,912 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 [2021-12-06 21:04:38,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,919 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-12-06 21:04:38,919 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-06 21:04:38,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,932 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2021-12-06 21:04:38,932 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-06 21:04:38,964 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:38,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-12-06 21:04:38,982 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:38,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:38,983 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:38,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-12-06 21:04:38,984 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 [2021-12-06 21:04:38,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:38,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:38,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:38,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:38,993 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:04:38,993 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:04:38,996 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:39,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-12-06 21:04:39,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:39,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:39,015 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:39,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-12-06 21:04:39,017 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 [2021-12-06 21:04:39,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:39,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:39,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:39,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:39,026 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:04:39,026 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:04:39,033 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:39,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-12-06 21:04:39,051 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:39,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:39,052 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:39,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-12-06 21:04:39,053 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 [2021-12-06 21:04:39,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:39,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:39,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:39,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:39,062 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:04:39,062 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:04:39,066 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:39,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-12-06 21:04:39,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:39,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:39,085 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:39,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-12-06 21:04:39,086 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 [2021-12-06 21:04:39,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:39,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:39,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:39,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:39,094 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:04:39,094 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:04:39,097 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:04:39,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-12-06 21:04:39,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:39,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:39,115 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:39,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-12-06 21:04:39,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 21:04:39,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:04:39,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:04:39,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:04:39,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:04:39,126 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:04:39,127 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:04:39,136 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 21:04:39,160 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2021-12-06 21:04:39,160 INFO L444 ModelExtractionUtils]: 17 out of 31 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-12-06 21:04:39,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:04:39,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:04:39,161 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:04:39,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-12-06 21:04:39,162 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 21:04:39,171 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 21:04:39,172 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 21:04:39,172 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc15#1.base)_3, ULTIMATE.start_strrchr_~t#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc15#1.base)_3 - 1*ULTIMATE.start_strrchr_~t#1.offset Supporting invariants [] [2021-12-06 21:04:39,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-12-06 21:04:39,246 INFO L297 tatePredicateManager]: 24 out of 25 supporting invariants were superfluous and have been removed [2021-12-06 21:04:39,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:04:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:04:39,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 21:04:39,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:04:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:04:39,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 21:04:39,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:04:39,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:04:39,363 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2021-12-06 21:04:39,363 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 33 transitions. cyclomatic complexity: 7 Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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) [2021-12-06 21:04:39,401 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 33 transitions. cyclomatic complexity: 7. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 41 states and 53 transitions. Complement of second has 7 states. [2021-12-06 21:04:39,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 21:04:39,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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) [2021-12-06 21:04:39,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2021-12-06 21:04:39,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 15 letters. Loop has 13 letters. [2021-12-06 21:04:39,403 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:04:39,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 28 letters. Loop has 13 letters. [2021-12-06 21:04:39,403 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:04:39,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 15 letters. Loop has 26 letters. [2021-12-06 21:04:39,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:04:39,404 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 53 transitions. [2021-12-06 21:04:39,404 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 21:04:39,404 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2021-12-06 21:04:39,404 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 21:04:39,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 21:04:39,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 21:04:39,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:04:39,405 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 21:04:39,405 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 21:04:39,405 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 21:04:39,405 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-12-06 21:04:39,405 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 21:04:39,405 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 21:04:39,405 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 21:04:39,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 09:04:39 BoogieIcfgContainer [2021-12-06 21:04:39,409 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 21:04:39,410 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 21:04:39,410 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 21:04:39,410 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 21:04:39,410 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:04:26" (3/4) ... [2021-12-06 21:04:39,412 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 21:04:39,412 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 21:04:39,413 INFO L158 Benchmark]: Toolchain (without parser) took 13649.83ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 65.1MB in the beginning and 41.2MB in the end (delta: 23.8MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2021-12-06 21:04:39,413 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 107.0MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:04:39,413 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.33ms. Allocated memory is still 107.0MB. Free memory was 64.9MB in the beginning and 49.4MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-06 21:04:39,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.97ms. Allocated memory is still 107.0MB. Free memory was 49.2MB in the beginning and 47.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 21:04:39,414 INFO L158 Benchmark]: Boogie Preprocessor took 19.91ms. Allocated memory is still 107.0MB. Free memory was 47.3MB in the beginning and 46.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:04:39,414 INFO L158 Benchmark]: RCFGBuilder took 278.15ms. Allocated memory is still 107.0MB. Free memory was 45.8MB in the beginning and 74.3MB in the end (delta: -28.5MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-12-06 21:04:39,414 INFO L158 Benchmark]: BuchiAutomizer took 13026.07ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 73.9MB in the beginning and 41.2MB in the end (delta: 32.6MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. [2021-12-06 21:04:39,414 INFO L158 Benchmark]: Witness Printer took 2.38ms. Allocated memory is still 136.3MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:04:39,415 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 107.0MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.33ms. Allocated memory is still 107.0MB. Free memory was 64.9MB in the beginning and 49.4MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.97ms. Allocated memory is still 107.0MB. Free memory was 49.2MB in the beginning and 47.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.91ms. Allocated memory is still 107.0MB. Free memory was 47.3MB in the beginning and 46.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 278.15ms. Allocated memory is still 107.0MB. Free memory was 45.8MB in the beginning and 74.3MB in the end (delta: -28.5MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 13026.07ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 73.9MB in the beginning and 41.2MB in the end (delta: 32.6MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. * Witness Printer took 2.38ms. Allocated memory is still 136.3MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (5 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + in_len and consists of 5 locations. One deterministic module has affine ranking function -1 * t + 4 and consists of 11 locations. One deterministic module has affine ranking function -1 * t + unknown-#length-unknown[__builtin_alloca (in_len)] and consists of 5 locations. 5 modules have a trivial ranking function, the largest among these consists of 38 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.9s and 9 iterations. TraceHistogramMax:5. Analysis of lassos took 11.3s. Construction of modules took 0.3s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 8. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 8 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 38 states and ocurred in iteration 5. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 303 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 302 mSDsluCounter, 555 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 64 IncrementalHoareTripleChecker+Unchecked, 454 mSDsCounter, 105 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1023 IncrementalHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 105 mSolverCounterUnsat, 101 mSDtfsCounter, 1023 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc5 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital176 mio100 ax100 hnf99 lsp103 ukn106 mio100 lsp41 div117 bol100 ite100 ukn100 eq173 hnf81 smp88 dnf227 smp71 tf100 neg99 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 53ms VariablesStem: 15 VariablesLoop: 5 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 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! [2021-12-06 21:04:39,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-12-06 21:04:39,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-12-06 21:04:39,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-12-06 21:04:40,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-12-06 21:04:40,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-12-06 21:04:40,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49236dca-7836-4545-a73b-20359e2ebeda/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE