./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrspn.c --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_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/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_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrspn.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/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_84b5071a-9f98-435a-abed-588f1ef4819d/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 ecf20dd2c3ee96f4ce33fb05fe8b8a847f94671834911abc2dee98681c717cc6 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:17:44,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:17:44,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:17:44,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:17:44,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:17:44,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:17:44,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:17:44,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:17:44,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:17:44,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:17:44,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:17:44,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:17:44,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:17:44,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:17:44,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:17:44,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:17:44,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:17:44,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:17:44,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:17:44,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:17:44,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:17:44,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:17:44,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:17:44,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:17:44,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:17:44,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:17:44,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:17:44,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:17:44,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:17:44,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:17:44,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:17:44,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:17:44,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:17:44,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:17:44,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:17:44,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:17:44,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:17:44,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:17:44,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:17:44,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:17:44,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:17:44,150 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 20:17:44,168 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:17:44,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:17:44,168 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:17:44,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:17:44,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:17:44,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:17:44,170 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:17:44,170 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 20:17:44,170 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 20:17:44,170 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 20:17:44,170 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 20:17:44,170 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 20:17:44,170 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 20:17:44,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:17:44,170 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 20:17:44,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:17:44,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:17:44,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 20:17:44,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 20:17:44,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 20:17:44,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:17:44,171 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 20:17:44,171 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:17:44,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 20:17:44,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:17:44,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:17:44,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:17:44,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:17:44,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:17:44,173 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 20:17:44,173 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_84b5071a-9f98-435a-abed-588f1ef4819d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecf20dd2c3ee96f4ce33fb05fe8b8a847f94671834911abc2dee98681c717cc6 [2021-12-06 20:17:44,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:17:44,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:17:44,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:17:44,349 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:17:44,350 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:17:44,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-crafted-lit/cstrspn.c [2021-12-06 20:17:44,397 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/data/4bbc38198/a0866c6178c94998859309e361cb633a/FLAG3fe3a34c2 [2021-12-06 20:17:44,840 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:17:44,841 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/sv-benchmarks/c/termination-crafted-lit/cstrspn.c [2021-12-06 20:17:44,845 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/data/4bbc38198/a0866c6178c94998859309e361cb633a/FLAG3fe3a34c2 [2021-12-06 20:17:44,854 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/data/4bbc38198/a0866c6178c94998859309e361cb633a [2021-12-06 20:17:44,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:17:44,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:17:44,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:17:44,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:17:44,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:17:44,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:17:44" (1/1) ... [2021-12-06 20:17:44,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b4cdbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:17:44, skipping insertion in model container [2021-12-06 20:17:44,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:17:44" (1/1) ... [2021-12-06 20:17:44,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:17:44,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:17:44,981 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:17:44,987 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:17:44,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:17:45,008 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:17:45,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:17:45 WrapperNode [2021-12-06 20:17:45,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:17:45,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:17:45,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:17:45,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:17:45,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:17:45" (1/1) ... [2021-12-06 20:17:45,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:17:45" (1/1) ... [2021-12-06 20:17:45,047 INFO L137 Inliner]: procedures = 11, calls = 12, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 81 [2021-12-06 20:17:45,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:17:45,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:17:45,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:17:45,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:17:45,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:17:45" (1/1) ... [2021-12-06 20:17:45,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:17:45" (1/1) ... [2021-12-06 20:17:45,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:17:45" (1/1) ... [2021-12-06 20:17:45,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:17:45" (1/1) ... [2021-12-06 20:17:45,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:17:45" (1/1) ... [2021-12-06 20:17:45,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:17:45" (1/1) ... [2021-12-06 20:17:45,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:17:45" (1/1) ... [2021-12-06 20:17:45,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:17:45,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:17:45,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:17:45,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:17:45,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:17:45" (1/1) ... [2021-12-06 20:17:45,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:45,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:45,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:45,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 20:17:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 20:17:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 20:17:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:17:45,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:17:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 20:17:45,196 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:17:45,197 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:17:45,310 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:17:45,315 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:17:45,315 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 20:17:45,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:17:45 BoogieIcfgContainer [2021-12-06 20:17:45,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:17:45,318 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 20:17:45,318 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 20:17:45,320 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 20:17:45,321 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 20:17:45,321 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 08:17:44" (1/3) ... [2021-12-06 20:17:45,322 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41df28db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 08:17:45, skipping insertion in model container [2021-12-06 20:17:45,322 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 20:17:45,322 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:17:45" (2/3) ... [2021-12-06 20:17:45,322 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41df28db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 08:17:45, skipping insertion in model container [2021-12-06 20:17:45,322 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 20:17:45,322 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:17:45" (3/3) ... [2021-12-06 20:17:45,323 INFO L388 chiAutomizerObserver]: Analyzing ICFG cstrspn.c [2021-12-06 20:17:45,357 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 20:17:45,357 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 20:17:45,357 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 20:17:45,357 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 20:17:45,357 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 20:17:45,357 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 20:17:45,357 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 20:17:45,357 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 20:17:45,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:17:45,387 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-06 20:17:45,387 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:17:45,387 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:17:45,394 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:17:45,394 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-06 20:17:45,395 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 20:17:45,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:17:45,396 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-06 20:17:45,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:17:45,397 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:17:45,397 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:17:45,397 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-06 20:17:45,402 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; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_#t~ret12#1;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 10#L14true assume !(build_nondet_String_~length~0#1 < 1); 19#L14-2true call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 18#L19true main_#t~ret10#1.base, main_#t~ret10#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 11#L14-3true assume build_nondet_String_~length~0#1 < 1;build_nondet_String_~length~0#1 := 1; 15#L14-5true call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 7#L19-1true main_#t~ret11#1.base, main_#t~ret11#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 16#L31-4true [2021-12-06 20:17:45,403 INFO L793 eck$LassoCheckResult]: Loop: 16#L31-4true call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 17#L31-1true assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 13#L34-5true assume !true; 5#L34-6true call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 9#L36true assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 12#L31-3true cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 16#L31-4true [2021-12-06 20:17:45,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:45,407 INFO L85 PathProgramCache]: Analyzing trace with hash 176610378, now seen corresponding path program 1 times [2021-12-06 20:17:45,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:17:45,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222026574] [2021-12-06 20:17:45,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:17:45,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:17:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:45,500 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:17:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:45,535 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:17:45,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:45,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1602834410, now seen corresponding path program 1 times [2021-12-06 20:17:45,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:17:45,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748998732] [2021-12-06 20:17:45,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:17:45,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:17:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:17:45,571 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 20:17:45,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:17:45,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748998732] [2021-12-06 20:17:45,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748998732] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:17:45,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:17:45,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:17:45,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306963251] [2021-12-06 20:17:45,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:17:45,576 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-06 20:17:45,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:17:45,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 20:17:45,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 20:17:45,601 INFO L87 Difference]: Start difference. First operand has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:17:45,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:17:45,606 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2021-12-06 20:17:45,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 20:17:45,612 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2021-12-06 20:17:45,614 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-06 20:17:45,617 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 16 states and 20 transitions. [2021-12-06 20:17:45,618 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-06 20:17:45,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-12-06 20:17:45,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 20 transitions. [2021-12-06 20:17:45,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:17:45,619 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-12-06 20:17:45,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 20 transitions. [2021-12-06 20:17:45,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-12-06 20:17:45,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 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 20:17:45,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-12-06 20:17:45,644 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-12-06 20:17:45,644 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-12-06 20:17:45,644 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 20:17:45,644 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2021-12-06 20:17:45,644 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-06 20:17:45,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:17:45,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:17:45,645 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:17:45,645 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:17:45,645 INFO L791 eck$LassoCheckResult]: Stem: 50#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 51#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_#t~ret12#1;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 57#L14 assume !(build_nondet_String_~length~0#1 < 1); 58#L14-2 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 65#L19 main_#t~ret10#1.base, main_#t~ret10#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 59#L14-3 assume build_nondet_String_~length~0#1 < 1;build_nondet_String_~length~0#1 := 1; 60#L14-5 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 54#L19-1 main_#t~ret11#1.base, main_#t~ret11#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 55#L31-4 [2021-12-06 20:17:45,645 INFO L793 eck$LassoCheckResult]: Loop: 55#L31-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 64#L31-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 61#L34-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 62#L34-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 63#L34-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 52#L34-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 53#L36 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 56#L31-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 55#L31-4 [2021-12-06 20:17:45,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:45,646 INFO L85 PathProgramCache]: Analyzing trace with hash 176610378, now seen corresponding path program 2 times [2021-12-06 20:17:45,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:17:45,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984429636] [2021-12-06 20:17:45,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:17:45,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:17:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:45,666 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:17:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:45,685 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:17:45,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:45,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1952985167, now seen corresponding path program 1 times [2021-12-06 20:17:45,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:17:45,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731040332] [2021-12-06 20:17:45,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:17:45,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:17:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:45,699 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:17:45,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:45,711 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:17:45,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:45,712 INFO L85 PathProgramCache]: Analyzing trace with hash -955886854, now seen corresponding path program 1 times [2021-12-06 20:17:45,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:17:45,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384647417] [2021-12-06 20:17:45,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:17:45,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:17:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:17:45,831 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 20:17:45,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:17:45,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384647417] [2021-12-06 20:17:45,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384647417] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:17:45,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:17:45,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 20:17:45,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291634271] [2021-12-06 20:17:45,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:17:46,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:17:46,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 20:17:46,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-06 20:17:46,046 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. cyclomatic complexity: 5 Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:17:46,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:17:46,153 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2021-12-06 20:17:46,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 20:17:46,154 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 40 transitions. [2021-12-06 20:17:46,156 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-12-06 20:17:46,156 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 31 states and 38 transitions. [2021-12-06 20:17:46,157 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-12-06 20:17:46,157 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-12-06 20:17:46,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 38 transitions. [2021-12-06 20:17:46,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:17:46,158 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-12-06 20:17:46,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 38 transitions. [2021-12-06 20:17:46,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2021-12-06 20:17:46,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 28 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 20:17:46,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2021-12-06 20:17:46,162 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-12-06 20:17:46,162 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-12-06 20:17:46,162 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 20:17:46,162 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 36 transitions. [2021-12-06 20:17:46,163 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-12-06 20:17:46,163 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:17:46,163 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:17:46,163 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:17:46,163 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:17:46,163 INFO L791 eck$LassoCheckResult]: Stem: 123#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_#t~ret12#1;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 129#L14 assume !(build_nondet_String_~length~0#1 < 1); 131#L14-2 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 142#L19 main_#t~ret10#1.base, main_#t~ret10#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 132#L14-3 assume !(build_nondet_String_~length~0#1 < 1); 133#L14-5 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 127#L19-1 main_#t~ret11#1.base, main_#t~ret11#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 128#L31-4 [2021-12-06 20:17:46,163 INFO L793 eck$LassoCheckResult]: Loop: 128#L31-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 140#L31-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 146#L34-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 151#L34-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 150#L34-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 149#L34-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 148#L36 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 135#L31-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 128#L31-4 [2021-12-06 20:17:46,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:46,164 INFO L85 PathProgramCache]: Analyzing trace with hash 176612300, now seen corresponding path program 1 times [2021-12-06 20:17:46,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:17:46,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223118765] [2021-12-06 20:17:46,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:17:46,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:17:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:46,176 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:17:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:46,189 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:17:46,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:46,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1952985167, now seen corresponding path program 2 times [2021-12-06 20:17:46,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:17:46,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111424832] [2021-12-06 20:17:46,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:17:46,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:17:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:46,197 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:17:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:46,205 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:17:46,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:46,206 INFO L85 PathProgramCache]: Analyzing trace with hash -254822276, now seen corresponding path program 1 times [2021-12-06 20:17:46,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:17:46,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472034047] [2021-12-06 20:17:46,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:17:46,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:17:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:46,229 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:17:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:46,251 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:17:46,758 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:17:46,759 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:17:46,759 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:17:46,759 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:17:46,759 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 20:17:46,759 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:46,759 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:17:46,759 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:17:46,759 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn.c_Iteration3_Lasso [2021-12-06 20:17:46,759 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:17:46,759 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:17:46,776 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 20:17:46,780 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 20:17:47,011 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 20:17:47,013 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 20:17:47,014 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 20:17:47,015 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 20:17:47,016 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 20:17:47,018 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 20:17:47,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:17:47,020 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 20:17:47,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:17:47,025 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 20:17:47,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:17:47,027 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 20:17:47,028 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 20:17:47,030 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 20:17:47,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:17:47,032 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 20:17:47,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:17:47,475 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:17:47,478 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 20:17:47,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:47,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:47,481 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:47,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 20:17:47,482 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 20:17:47,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:47,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:47,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:47,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:47,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:47,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:47,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:47,493 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:47,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 20:17:47,513 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:47,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:47,514 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:47,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 20:17:47,515 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 20:17:47,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:47,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:47,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:47,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:47,525 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:17:47,526 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:17:47,528 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:47,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 20:17:47,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:47,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:47,548 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:47,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 20:17:47,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 20:17:47,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:47,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:47,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:47,557 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-06 20:17:47,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:47,559 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-06 20:17:47,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:47,563 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:47,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 20:17:47,581 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:47,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:47,582 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:47,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 20:17:47,583 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 20:17:47,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:47,591 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:47,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:47,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:47,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:47,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:47,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:47,592 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:47,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 20:17:47,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:47,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:47,612 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:47,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 20:17:47,613 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 20:17:47,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:47,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:47,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:47,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:47,626 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:17:47,626 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:17:47,633 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:47,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 20:17:47,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:47,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:47,653 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:47,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 20:17:47,655 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 20:17:47,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:47,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:47,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:47,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:47,668 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:17:47,668 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:17:47,676 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 20:17:47,697 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-12-06 20:17:47,697 INFO L444 ModelExtractionUtils]: 7 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-12-06 20:17:47,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:47,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:47,700 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:47,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 20:17:47,738 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 20:17:47,749 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 20:17:47,749 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 20:17:47,749 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~sc1~0#1.offset, v_rep(select #length ULTIMATE.start_main_#t~ret10#1.base)_1) = -1*ULTIMATE.start_cstrspn_~sc1~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~ret10#1.base)_1 Supporting invariants [] [2021-12-06 20:17:47,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 20:17:47,782 INFO L297 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2021-12-06 20:17:47,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:17:47,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 20:17:47,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:17:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:17:47,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 20:17:47,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:17:47,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 20:17:47,914 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 20:17:47,916 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 20:17:47,917 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:17:47,963 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 48 states and 62 transitions. Complement of second has 4 states. [2021-12-06 20:17:47,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 20:17:47,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:17:47,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2021-12-06 20:17:47,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 8 letters. Loop has 8 letters. [2021-12-06 20:17:47,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:17:47,968 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 16 letters. Loop has 8 letters. [2021-12-06 20:17:47,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:17:47,968 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 8 letters. Loop has 16 letters. [2021-12-06 20:17:47,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:17:47,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 62 transitions. [2021-12-06 20:17:47,970 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-06 20:17:47,971 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 42 states and 56 transitions. [2021-12-06 20:17:47,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-12-06 20:17:47,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2021-12-06 20:17:47,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 56 transitions. [2021-12-06 20:17:47,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 20:17:47,972 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 56 transitions. [2021-12-06 20:17:47,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 56 transitions. [2021-12-06 20:17:47,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 35. [2021-12-06 20:17:47,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 34 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 20:17:47,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 47 transitions. [2021-12-06 20:17:47,977 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 47 transitions. [2021-12-06 20:17:47,977 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 47 transitions. [2021-12-06 20:17:47,977 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 20:17:47,977 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 47 transitions. [2021-12-06 20:17:47,978 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 20:17:47,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:17:47,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:17:47,980 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:17:47,980 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 20:17:47,980 INFO L791 eck$LassoCheckResult]: Stem: 297#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 298#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_#t~ret12#1;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 305#L14 assume !(build_nondet_String_~length~0#1 < 1); 306#L14-2 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 323#L19 main_#t~ret10#1.base, main_#t~ret10#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 308#L14-3 assume !(build_nondet_String_~length~0#1 < 1); 309#L14-5 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 318#L19-1 main_#t~ret11#1.base, main_#t~ret11#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 330#L31-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 320#L31-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 311#L34-5 [2021-12-06 20:17:47,980 INFO L793 eck$LassoCheckResult]: Loop: 311#L34-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 312#L34-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 315#L34-3 assume !!cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1;cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset := cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_#t~post8#1.base, 1 + cstrspn_#t~post8#1.offset;havoc cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset; 311#L34-5 [2021-12-06 20:17:47,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:47,981 INFO L85 PathProgramCache]: Analyzing trace with hash -2074270767, now seen corresponding path program 1 times [2021-12-06 20:17:47,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:17:47,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917964545] [2021-12-06 20:17:47,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:17:47,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:17:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:48,004 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:17:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:48,024 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:17:48,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:48,024 INFO L85 PathProgramCache]: Analyzing trace with hash 63657, now seen corresponding path program 1 times [2021-12-06 20:17:48,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:17:48,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462362052] [2021-12-06 20:17:48,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:17:48,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:17:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:48,031 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:17:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:48,037 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:17:48,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:48,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1389069017, now seen corresponding path program 1 times [2021-12-06 20:17:48,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:17:48,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155487891] [2021-12-06 20:17:48,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:17:48,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:17:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:48,062 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:17:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:48,086 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:17:48,587 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:17:48,587 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:17:48,587 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:17:48,587 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:17:48,587 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 20:17:48,587 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:48,587 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:17:48,587 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:17:48,587 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn.c_Iteration4_Lasso [2021-12-06 20:17:48,587 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:17:48,587 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:17:48,590 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 20:17:48,591 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 20:17:48,599 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 20:17:48,601 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 20:17:48,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:17:48,603 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 20:17:48,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:17:48,605 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 20:17:48,605 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 20:17:48,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 20:17:48,812 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 20:17:48,814 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 20:17:48,815 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 20:17:48,815 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 20:17:48,816 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 20:17:48,817 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 20:17:48,818 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 20:17:48,819 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 20:17:48,820 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 20:17:49,316 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:17:49,316 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 20:17:49,316 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:49,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:49,317 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:49,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 20:17:49,320 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 20:17:49,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:49,327 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:49,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:49,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:49,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:49,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:49,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:49,329 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:49,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 20:17:49,347 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:49,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:49,348 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:49,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 20:17:49,349 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 20:17:49,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:49,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:49,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:49,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:49,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:49,357 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:49,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:49,358 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:49,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 20:17:49,376 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:49,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:49,377 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:49,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 20:17:49,379 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 20:17:49,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:49,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:49,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:49,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:49,390 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:17:49,391 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:17:49,393 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:49,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-06 20:17:49,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:49,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:49,412 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:49,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 20:17:49,414 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 20:17:49,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:49,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:49,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:49,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:49,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:49,421 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:49,421 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:49,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:49,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-06 20:17:49,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:49,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:49,442 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:49,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 20:17:49,443 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 20:17:49,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:49,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:49,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:49,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:49,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:49,451 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:49,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:49,452 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:49,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-06 20:17:49,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:49,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:49,471 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:49,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 20:17:49,472 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 20:17:49,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:49,480 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:49,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:49,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:49,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:49,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:49,480 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:49,482 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:49,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-06 20:17:49,501 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:49,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:49,501 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:49,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 20:17:49,503 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 20:17:49,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:49,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:49,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:49,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:49,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:49,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:49,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:49,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:49,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 20:17:49,537 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:49,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:49,537 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:49,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 20:17:49,539 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 20:17:49,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:49,546 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:49,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:49,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:49,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:49,546 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:49,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:49,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:49,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 20:17:49,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:49,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:49,566 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:49,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 20:17:49,567 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 20:17:49,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:49,574 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:49,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:49,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:49,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:49,575 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:49,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:49,576 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:49,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 20:17:49,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:49,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:49,595 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:49,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 20:17:49,596 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 20:17:49,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:49,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:49,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:49,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:49,604 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:17:49,604 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:17:49,607 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:49,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-06 20:17:49,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:49,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:49,626 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:49,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 20:17:49,627 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 20:17:49,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:49,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:49,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:49,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:49,638 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:17:49,638 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:17:49,642 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:49,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 20:17:49,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:49,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:49,661 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:49,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 20:17:49,662 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 20:17:49,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:49,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:49,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:49,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:49,671 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:17:49,671 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:17:49,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:49,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-06 20:17:49,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:49,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:49,693 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:49,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 20:17:49,694 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 20:17:49,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:49,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:49,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:49,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:49,702 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:17:49,702 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:17:49,704 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:49,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-06 20:17:49,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:49,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:49,724 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:49,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 20:17:49,725 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 20:17:49,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:49,732 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-12-06 20:17:49,733 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2021-12-06 20:17:49,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:49,760 INFO L401 nArgumentSynthesizer]: We have 108 Motzkin's Theorem applications. [2021-12-06 20:17:49,761 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2021-12-06 20:17:49,850 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:49,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 20:17:49,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:49,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:49,871 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:49,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 20:17:49,872 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 20:17:49,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:49,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:49,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:49,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:49,885 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:17:49,885 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:17:49,898 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 20:17:49,922 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-12-06 20:17:49,922 INFO L444 ModelExtractionUtils]: 32 out of 49 variables were initially zero. Simplification set additionally 14 variables to zero. [2021-12-06 20:17:49,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:49,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:49,923 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:49,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 20:17:49,924 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 20:17:49,932 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 20:17:49,932 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 20:17:49,932 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~s~0#1.offset, v_rep(select #length ULTIMATE.start_build_nondet_String_~nondetString~0#1.base)_2) = -1*ULTIMATE.start_cstrspn_~s~0#1.offset + 1*v_rep(select #length ULTIMATE.start_build_nondet_String_~nondetString~0#1.base)_2 Supporting invariants [] [2021-12-06 20:17:49,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-06 20:17:49,968 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2021-12-06 20:17:49,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:17:49,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 20:17:49,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:17:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:17:50,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 20:17:50,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:17:50,039 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 20:17:50,039 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-12-06 20:17:50,040 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 47 transitions. cyclomatic complexity: 15 Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:17:50,076 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 47 transitions. cyclomatic complexity: 15. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 81 states and 107 transitions. Complement of second has 7 states. [2021-12-06 20:17:50,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 20:17:50,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:17:50,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-12-06 20:17:50,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 10 letters. Loop has 3 letters. [2021-12-06 20:17:50,077 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:17:50,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 13 letters. Loop has 3 letters. [2021-12-06 20:17:50,077 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:17:50,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 10 letters. Loop has 6 letters. [2021-12-06 20:17:50,078 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:17:50,078 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 107 transitions. [2021-12-06 20:17:50,079 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 20:17:50,080 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 61 states and 80 transitions. [2021-12-06 20:17:50,080 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-12-06 20:17:50,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-12-06 20:17:50,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 80 transitions. [2021-12-06 20:17:50,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 20:17:50,080 INFO L681 BuchiCegarLoop]: Abstraction has 61 states and 80 transitions. [2021-12-06 20:17:50,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 80 transitions. [2021-12-06 20:17:50,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 48. [2021-12-06 20:17:50,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.3333333333333333) internal successors, (64), 47 states have internal predecessors, (64), 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 20:17:50,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 64 transitions. [2021-12-06 20:17:50,084 INFO L704 BuchiCegarLoop]: Abstraction has 48 states and 64 transitions. [2021-12-06 20:17:50,084 INFO L587 BuchiCegarLoop]: Abstraction has 48 states and 64 transitions. [2021-12-06 20:17:50,084 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 20:17:50,084 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 64 transitions. [2021-12-06 20:17:50,084 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 20:17:50,084 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:17:50,084 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:17:50,085 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:17:50,085 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 20:17:50,085 INFO L791 eck$LassoCheckResult]: Stem: 521#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 522#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_#t~ret12#1;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 528#L14 assume !(build_nondet_String_~length~0#1 < 1); 529#L14-2 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 546#L19 main_#t~ret10#1.base, main_#t~ret10#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 531#L14-3 assume !(build_nondet_String_~length~0#1 < 1); 532#L14-5 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 540#L19-1 main_#t~ret11#1.base, main_#t~ret11#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 559#L31-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 557#L31-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 558#L34-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 551#L34-1 assume !cstrspn_#t~short7#1; 552#L34-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 565#L34-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 564#L36 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 563#L31-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 562#L31-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 542#L31-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 534#L34-5 [2021-12-06 20:17:50,085 INFO L793 eck$LassoCheckResult]: Loop: 534#L34-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 535#L34-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 538#L34-3 assume !!cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1;cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset := cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_#t~post8#1.base, 1 + cstrspn_#t~post8#1.offset;havoc cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset; 534#L34-5 [2021-12-06 20:17:50,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:50,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1703936771, now seen corresponding path program 1 times [2021-12-06 20:17:50,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:17:50,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880122767] [2021-12-06 20:17:50,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:17:50,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:17:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:17:50,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:17:50,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:17:50,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880122767] [2021-12-06 20:17:50,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880122767] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:17:50,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:17:50,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 20:17:50,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367239765] [2021-12-06 20:17:50,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:17:50,120 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 20:17:50,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:50,120 INFO L85 PathProgramCache]: Analyzing trace with hash 63657, now seen corresponding path program 2 times [2021-12-06 20:17:50,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:17:50,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449670188] [2021-12-06 20:17:50,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:17:50,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:17:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:50,123 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:17:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:50,127 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:17:50,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:17:50,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 20:17:50,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:17:50,191 INFO L87 Difference]: Start difference. First operand 48 states and 64 transitions. cyclomatic complexity: 21 Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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 20:17:50,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:17:50,226 INFO L93 Difference]: Finished difference Result 60 states and 76 transitions. [2021-12-06 20:17:50,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 20:17:50,227 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 76 transitions. [2021-12-06 20:17:50,228 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 20:17:50,228 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 54 states and 68 transitions. [2021-12-06 20:17:50,228 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-12-06 20:17:50,228 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-12-06 20:17:50,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 68 transitions. [2021-12-06 20:17:50,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 20:17:50,229 INFO L681 BuchiCegarLoop]: Abstraction has 54 states and 68 transitions. [2021-12-06 20:17:50,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 68 transitions. [2021-12-06 20:17:50,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2021-12-06 20:17:50,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 48 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 20:17:50,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2021-12-06 20:17:50,232 INFO L704 BuchiCegarLoop]: Abstraction has 49 states and 63 transitions. [2021-12-06 20:17:50,232 INFO L587 BuchiCegarLoop]: Abstraction has 49 states and 63 transitions. [2021-12-06 20:17:50,232 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-06 20:17:50,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 63 transitions. [2021-12-06 20:17:50,233 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 20:17:50,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 20:17:50,233 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 20:17:50,233 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:17:50,233 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 20:17:50,234 INFO L791 eck$LassoCheckResult]: Stem: 647#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 648#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_#t~ret12#1;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 653#L14 assume !(build_nondet_String_~length~0#1 < 1); 655#L14-2 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 674#L19 main_#t~ret10#1.base, main_#t~ret10#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_build_nondet_String } true;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~nondet0#1, build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length~0#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length~0#1 := build_nondet_String_#t~nondet0#1;havoc build_nondet_String_#t~nondet0#1; 656#L14-3 assume !(build_nondet_String_~length~0#1 < 1); 657#L14-5 call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0#1);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length~0#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 651#L19-1 main_#t~ret11#1.base, main_#t~ret11#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1.base, main_#t~ret11#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~mem4#1, cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset, cstrspn_#t~mem5#1, cstrspn_#t~mem6#1, cstrspn_#t~short7#1, cstrspn_#t~mem9#1, cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, cstrspn_~c~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;havoc cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;havoc cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;havoc cstrspn_~c~0#1;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset; 652#L31-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 683#L31-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 680#L34-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 682#L34-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 676#L34-3 assume !cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1; 649#L34-6 call cstrspn_#t~mem9#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1); 650#L36 assume !(cstrspn_#t~mem9#1 != cstrspn_~c~0#1);havoc cstrspn_#t~mem9#1; 654#L31-3 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset;cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset; 659#L31-4 call cstrspn_#t~mem3#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1); 670#L31-1 assume !!(0 != cstrspn_#t~mem3#1);havoc cstrspn_#t~mem3#1;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset;call cstrspn_#t~mem4#1 := read~int(cstrspn_~sc1~0#1.base, cstrspn_~sc1~0#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem4#1;havoc cstrspn_#t~mem4#1; 660#L34-5 [2021-12-06 20:17:50,234 INFO L793 eck$LassoCheckResult]: Loop: 660#L34-5 call cstrspn_#t~mem5#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := 0 != cstrspn_#t~mem5#1; 661#L34-1 assume cstrspn_#t~short7#1;call cstrspn_#t~mem6#1 := read~int(cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset, 1);cstrspn_#t~short7#1 := cstrspn_#t~mem6#1 != (if cstrspn_~c~0#1 % 256 <= 127 then cstrspn_~c~0#1 % 256 else cstrspn_~c~0#1 % 256 - 256); 664#L34-3 assume !!cstrspn_#t~short7#1;havoc cstrspn_#t~mem5#1;havoc cstrspn_#t~mem6#1;havoc cstrspn_#t~short7#1;cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset := cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset;cstrspn_~s~0#1.base, cstrspn_~s~0#1.offset := cstrspn_#t~post8#1.base, 1 + cstrspn_#t~post8#1.offset;havoc cstrspn_#t~post8#1.base, cstrspn_#t~post8#1.offset; 660#L34-5 [2021-12-06 20:17:50,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:50,234 INFO L85 PathProgramCache]: Analyzing trace with hash -71070591, now seen corresponding path program 2 times [2021-12-06 20:17:50,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:17:50,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616033710] [2021-12-06 20:17:50,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:17:50,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:17:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:50,246 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:17:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:50,260 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:17:50,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:50,261 INFO L85 PathProgramCache]: Analyzing trace with hash 63657, now seen corresponding path program 3 times [2021-12-06 20:17:50,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:17:50,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419819184] [2021-12-06 20:17:50,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:17:50,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:17:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:50,264 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:17:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:50,268 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:17:50,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:50,268 INFO L85 PathProgramCache]: Analyzing trace with hash 154934313, now seen corresponding path program 1 times [2021-12-06 20:17:50,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:17:50,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603646535] [2021-12-06 20:17:50,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:17:50,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:17:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:50,291 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:17:50,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-06 20:17:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:17:50,313 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:17:51,232 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 20:17:51,232 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 20:17:51,232 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 20:17:51,232 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 20:17:51,232 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 20:17:51,232 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:51,233 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 20:17:51,233 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 20:17:51,233 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn.c_Iteration6_Lasso [2021-12-06 20:17:51,233 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 20:17:51,233 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 20:17:51,236 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 20:17:51,237 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 20:17:51,238 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 20:17:51,239 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 20:17:51,241 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 20:17:51,241 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 20:17:51,242 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 20:17:51,243 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 20:17:51,245 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 20:17:51,245 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 20:17:51,246 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 20:17:51,247 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 20:17:51,248 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 20:17:51,249 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 20:17:51,873 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 20:17:51,874 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 20:17:51,875 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 20:17:51,876 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 20:17:51,877 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 20:17:52,594 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 20:17:52,594 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 20:17:52,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:52,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:52,595 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:52,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-06 20:17:52,596 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 20:17:52,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:52,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:52,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:52,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:52,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:52,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:52,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:52,605 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:52,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-06 20:17:52,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:52,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:52,623 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:52,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-06 20:17:52,624 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 20:17:52,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:52,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:52,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:52,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:52,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:17:52,634 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:17:52,637 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:52,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-06 20:17:52,655 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:52,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:52,656 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:52,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-06 20:17:52,657 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 20:17:52,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:52,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:52,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:52,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:52,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:52,664 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:52,664 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:52,665 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:52,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-06 20:17:52,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:52,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:52,684 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:52,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-06 20:17:52,685 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 20:17:52,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:52,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:52,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:52,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:52,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:52,693 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:52,693 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:52,694 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:52,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-06 20:17:52,712 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:52,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:52,713 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:52,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-06 20:17:52,714 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 20:17:52,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:52,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:52,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:52,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:52,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:52,721 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:52,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:52,722 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:52,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-12-06 20:17:52,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:52,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:52,741 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:52,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-06 20:17:52,743 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 20:17:52,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:52,750 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:52,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:52,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:52,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:52,750 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:52,751 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:52,752 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:52,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-06 20:17:52,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:52,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:52,771 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:52,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-06 20:17:52,772 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 20:17:52,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:52,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:52,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:52,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:52,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:52,780 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:52,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:52,781 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:52,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-06 20:17:52,800 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:52,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:52,800 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:52,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-06 20:17:52,804 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 20:17:52,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:52,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:52,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:52,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:52,813 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:17:52,813 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:17:52,816 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:52,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-12-06 20:17:52,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:52,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:52,835 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:52,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-06 20:17:52,836 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 20:17:52,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:52,843 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:52,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:52,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:52,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:52,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:52,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:52,844 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:52,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-06 20:17:52,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:52,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:52,864 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:52,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-06 20:17:52,865 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 20:17:52,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:52,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:52,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:52,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:52,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:52,872 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:52,872 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:52,873 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:52,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-12-06 20:17:52,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:52,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:52,892 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:52,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-06 20:17:52,893 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 20:17:52,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:52,900 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:52,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:52,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:52,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:52,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:52,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:52,902 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:52,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-12-06 20:17:52,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:52,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:52,921 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:52,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-06 20:17:52,922 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 20:17:52,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:52,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:52,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:52,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:52,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:52,929 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:52,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:52,930 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:52,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-12-06 20:17:52,949 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:52,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:52,950 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:52,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-06 20:17:52,951 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 20:17:52,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:52,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 20:17:52,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:52,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:52,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:52,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 20:17:52,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 20:17:52,960 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:52,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-12-06 20:17:52,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:52,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:52,979 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:52,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-06 20:17:52,981 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 20:17:52,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:52,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:52,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:52,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:52,989 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:17:52,989 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:17:52,992 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 20:17:53,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-12-06 20:17:53,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:53,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:53,011 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:53,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-06 20:17:53,012 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 20:17:53,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 20:17:53,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 20:17:53,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 20:17:53,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 20:17:53,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 20:17:53,025 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 20:17:53,038 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 20:17:53,090 INFO L443 ModelExtractionUtils]: Simplification made 30 calls to the SMT solver. [2021-12-06 20:17:53,090 INFO L444 ModelExtractionUtils]: 10 out of 49 variables were initially zero. Simplification set additionally 34 variables to zero. [2021-12-06 20:17:53,090 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 20:17:53,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:17:53,091 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 20:17:53,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-06 20:17:53,092 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 20:17:53,100 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-06 20:17:53,100 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 20:17:53,100 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_build_nondet_String_~length~0#1, ULTIMATE.start_cstrspn_~s~0#1.offset) = 1*ULTIMATE.start_build_nondet_String_~length~0#1 - 1*ULTIMATE.start_cstrspn_~s~0#1.offset Supporting invariants [1*ULTIMATE.start_build_nondet_String_~length~0#1 - 1*v_rep(select #length ULTIMATE.start_build_nondet_String_~nondetString~0#1.base)_3 >= 0] [2021-12-06 20:17:53,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-12-06 20:17:53,171 INFO L297 tatePredicateManager]: 15 out of 18 supporting invariants were superfluous and have been removed [2021-12-06 20:17:53,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:17:53,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-06 20:17:53,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:17:53,227 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 20:17:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:17:53,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 20:17:53,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:17:53,302 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 20:17:53,302 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-12-06 20:17:53,302 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 19 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 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 20:17:53,346 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 19. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 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 79 states and 99 transitions. Complement of second has 7 states. [2021-12-06 20:17:53,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 20:17:53,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 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 20:17:53,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-12-06 20:17:53,347 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 18 letters. Loop has 3 letters. [2021-12-06 20:17:53,347 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:17:53,347 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 20:17:53,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:17:53,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-06 20:17:53,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:17:53,388 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 20:17:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:17:53,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 20:17:53,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:17:53,462 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 20:17:53,462 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 2 loop predicates [2021-12-06 20:17:53,462 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 19 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 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 20:17:53,501 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 19. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 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 79 states and 99 transitions. Complement of second has 7 states. [2021-12-06 20:17:53,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 20:17:53,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 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 20:17:53,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-12-06 20:17:53,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 18 letters. Loop has 3 letters. [2021-12-06 20:17:53,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:17:53,502 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 20:17:53,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:17:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:17:53,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-06 20:17:53,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:17:53,545 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 20:17:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:17:53,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 20:17:53,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:17:53,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-12-06 20:17:53,629 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 20:17:53,630 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-12-06 20:17:53,630 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 19 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 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 20:17:53,672 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 19. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 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 78 states and 102 transitions. Complement of second has 6 states. [2021-12-06 20:17:53,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 20:17:53,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 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 20:17:53,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2021-12-06 20:17:53,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 18 letters. Loop has 3 letters. [2021-12-06 20:17:53,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:17:53,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 21 letters. Loop has 3 letters. [2021-12-06 20:17:53,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:17:53,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 18 letters. Loop has 6 letters. [2021-12-06 20:17:53,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 20:17:53,674 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 102 transitions. [2021-12-06 20:17:53,675 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 20:17:53,675 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 0 states and 0 transitions. [2021-12-06 20:17:53,675 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 20:17:53,675 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 20:17:53,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 20:17:53,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 20:17:53,676 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:17:53,676 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:17:53,676 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:17:53,676 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-06 20:17:53,676 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 20:17:53,676 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 20:17:53,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 20:17:53,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 08:17:53 BoogieIcfgContainer [2021-12-06 20:17:53,680 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 20:17:53,681 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:17:53,681 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:17:53,681 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:17:53,681 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:17:45" (3/4) ... [2021-12-06 20:17:53,683 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 20:17:53,683 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:17:53,683 INFO L158 Benchmark]: Toolchain (without parser) took 8826.12ms. Allocated memory was 132.1MB in the beginning and 161.5MB in the end (delta: 29.4MB). Free memory was 103.7MB in the beginning and 121.2MB in the end (delta: -17.5MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2021-12-06 20:17:53,684 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 86.0MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:17:53,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 150.26ms. Allocated memory is still 132.1MB. Free memory was 103.4MB in the beginning and 94.0MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 20:17:53,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.70ms. Allocated memory is still 132.1MB. Free memory was 94.0MB in the beginning and 92.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 20:17:53,684 INFO L158 Benchmark]: Boogie Preprocessor took 26.79ms. Allocated memory is still 132.1MB. Free memory was 92.2MB in the beginning and 90.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:17:53,685 INFO L158 Benchmark]: RCFGBuilder took 241.14ms. Allocated memory is still 132.1MB. Free memory was 90.8MB in the beginning and 79.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 20:17:53,685 INFO L158 Benchmark]: BuchiAutomizer took 8362.67ms. Allocated memory was 132.1MB in the beginning and 161.5MB in the end (delta: 29.4MB). Free memory was 79.1MB in the beginning and 121.2MB in the end (delta: -42.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:17:53,685 INFO L158 Benchmark]: Witness Printer took 2.33ms. Allocated memory is still 161.5MB. Free memory is still 121.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:17:53,687 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 86.0MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 150.26ms. Allocated memory is still 132.1MB. Free memory was 103.4MB in the beginning and 94.0MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.70ms. Allocated memory is still 132.1MB. Free memory was 94.0MB in the beginning and 92.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.79ms. Allocated memory is still 132.1MB. Free memory was 92.2MB in the beginning and 90.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 241.14ms. Allocated memory is still 132.1MB. Free memory was 90.8MB in the beginning and 79.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 8362.67ms. Allocated memory was 132.1MB in the beginning and 161.5MB in the end (delta: 29.4MB). Free memory was 79.1MB in the beginning and 121.2MB in the end (delta: -42.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.33ms. Allocated memory is still 161.5MB. Free memory is still 121.2MB. 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 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[build_nondet_String()] + -1 * sc1 and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString] + -1 * s and consists of 5 locations. One nondeterministic module has affine ranking function length + -1 * s and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.3s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 7.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 27 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 49 states and ocurred in iteration 5. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 179 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 274 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 140 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 243 IncrementalHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 134 mSDtfsCounter, 243 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital275 mio100 ax100 hnf100 lsp107 ukn82 mio100 lsp32 div126 bol100 ite100 ukn100 eq170 hnf80 smp91 dnf677 smp41 tf100 neg96 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 127ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 2 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 108 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 20:17:53,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84b5071a-9f98-435a-abed-588f1ef4819d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE