./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrchr_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrchr_reverse_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3 --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 a273450068a0d5a7644f3536efd5c3c568bd1daf ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 20:02:49,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 20:02:49,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 20:02:49,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 20:02:49,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 20:02:49,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 20:02:49,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 20:02:49,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 20:02:49,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 20:02:49,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 20:02:49,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 20:02:49,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 20:02:49,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 20:02:49,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 20:02:49,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 20:02:49,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 20:02:49,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 20:02:49,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 20:02:49,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 20:02:49,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 20:02:49,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 20:02:49,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 20:02:49,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 20:02:49,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 20:02:49,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 20:02:49,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 20:02:49,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 20:02:49,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 20:02:49,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 20:02:49,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 20:02:49,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 20:02:49,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 20:02:50,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 20:02:50,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 20:02:50,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 20:02:50,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 20:02:50,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 20:02:50,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 20:02:50,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 20:02:50,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 20:02:50,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 20:02:50,013 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-15 20:02:50,065 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 20:02:50,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 20:02:50,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 20:02:50,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 20:02:50,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 20:02:50,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 20:02:50,071 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 20:02:50,071 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 20:02:50,071 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 20:02:50,072 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 20:02:50,073 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 20:02:50,074 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 20:02:50,074 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 20:02:50,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 20:02:50,075 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 20:02:50,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 20:02:50,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 20:02:50,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 20:02:50,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 20:02:50,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 20:02:50,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 20:02:50,077 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 20:02:50,077 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 20:02:50,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 20:02:50,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 20:02:50,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 20:02:50,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 20:02:50,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 20:02:50,081 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 20:02:50,083 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 20:02:50,083 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_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a273450068a0d5a7644f3536efd5c3c568bd1daf [2021-10-15 20:02:50,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 20:02:50,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 20:02:50,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 20:02:50,465 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 20:02:50,466 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 20:02:50,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/termination-15/cstrchr_reverse_alloca.i [2021-10-15 20:02:50,554 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/data/fa6243a11/e3d6bb09604f4318b18af57eb3664be9/FLAG5323a4b62 [2021-10-15 20:02:51,211 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 20:02:51,212 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/sv-benchmarks/c/termination-15/cstrchr_reverse_alloca.i [2021-10-15 20:02:51,225 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/data/fa6243a11/e3d6bb09604f4318b18af57eb3664be9/FLAG5323a4b62 [2021-10-15 20:02:51,464 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/data/fa6243a11/e3d6bb09604f4318b18af57eb3664be9 [2021-10-15 20:02:51,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 20:02:51,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 20:02:51,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 20:02:51,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 20:02:51,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 20:02:51,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:02:51" (1/1) ... [2021-10-15 20:02:51,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f82f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:02:51, skipping insertion in model container [2021-10-15 20:02:51,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:02:51" (1/1) ... [2021-10-15 20:02:51,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 20:02:51,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 20:02:52,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:02:52,110 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 20:02:52,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:02:52,235 INFO L208 MainTranslator]: Completed translation [2021-10-15 20:02:52,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:02:52 WrapperNode [2021-10-15 20:02:52,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 20:02:52,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 20:02:52,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 20:02:52,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 20:02:52,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:02:52" (1/1) ... [2021-10-15 20:02:52,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:02:52" (1/1) ... [2021-10-15 20:02:52,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 20:02:52,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 20:02:52,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 20:02:52,300 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 20:02:52,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:02:52" (1/1) ... [2021-10-15 20:02:52,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:02:52" (1/1) ... [2021-10-15 20:02:52,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:02:52" (1/1) ... [2021-10-15 20:02:52,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:02:52" (1/1) ... [2021-10-15 20:02:52,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:02:52" (1/1) ... [2021-10-15 20:02:52,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:02:52" (1/1) ... [2021-10-15 20:02:52,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:02:52" (1/1) ... [2021-10-15 20:02:52,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 20:02:52,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 20:02:52,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 20:02:52,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 20:02:52,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:02:52" (1/1) ... [2021-10-15 20:02:52,352 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:02:52,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:02:52,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:02:52,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 20:02:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 20:02:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 20:02:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 20:02:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 20:02:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 20:02:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 20:02:52,698 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 20:02:52,698 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-15 20:02:52,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:02:52 BoogieIcfgContainer [2021-10-15 20:02:52,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 20:02:52,702 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 20:02:52,702 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 20:02:52,706 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 20:02:52,707 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:02:52,708 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 08:02:51" (1/3) ... [2021-10-15 20:02:52,709 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e2af4a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:02:52, skipping insertion in model container [2021-10-15 20:02:52,710 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:02:52,710 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:02:52" (2/3) ... [2021-10-15 20:02:52,710 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e2af4a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:02:52, skipping insertion in model container [2021-10-15 20:02:52,710 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:02:52,711 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:02:52" (3/3) ... [2021-10-15 20:02:52,712 INFO L389 chiAutomizerObserver]: Analyzing ICFG cstrchr_reverse_alloca.i [2021-10-15 20:02:52,769 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 20:02:52,770 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 20:02:52,770 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 20:02:52,770 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 20:02:52,770 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 20:02:52,771 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 20:02:52,771 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 20:02:52,771 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 20:02:52,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:02:52,813 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-15 20:02:52,813 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:02:52,813 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:02:52,820 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-15 20:02:52,820 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-15 20:02:52,821 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 20:02:52,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:02:52,824 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-15 20:02:52,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:02:52,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:02:52,825 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-15 20:02:52,825 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-15 20:02:52,834 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet211, main_#t~malloc212.base, main_#t~malloc212.offset, main_#t~nondet213, main_#t~ret214.base, main_#t~ret214.offset, main_~length~0, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet211;havoc main_#t~nondet211; 13#L372true assume !(main_~length~0 < 1); 15#L372-2true call main_#t~malloc212.base, main_#t~malloc212.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc212.base, main_#t~malloc212.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset, 1);main_~nondetString~0.base, main_~nondetString~0.offset := main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1);cstrchr_#in~s.base, cstrchr_#in~s.offset, cstrchr_#in~c := main_~nondetString~0.base, main_~nondetString~0.offset, main_#t~nondet213;havoc cstrchr_#res.base, cstrchr_#res.offset;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset, cstrchr_#t~mem205, cstrchr_#t~mem206, cstrchr_#t~short207, cstrchr_#t~mem209, cstrchr_#t~ite210.base, cstrchr_#t~ite210.offset, cstrchr_~s.base, cstrchr_~s.offset, cstrchr_~c;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#in~s.base, cstrchr_#in~s.offset;cstrchr_~c := cstrchr_#in~c; 11#L366-5true [2021-10-15 20:02:52,835 INFO L793 eck$LassoCheckResult]: Loop: 11#L366-5true call cstrchr_#t~mem205 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short207 := 0 != cstrchr_#t~mem205; 14#L366-1true assume cstrchr_#t~short207;call cstrchr_#t~mem206 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short207 := cstrchr_#t~mem206 != (if cstrchr_~c % 256 <= 127 then cstrchr_~c % 256 else cstrchr_~c % 256 - 256); 6#L366-3true assume !!cstrchr_#t~short207;havoc cstrchr_#t~mem205;havoc cstrchr_#t~mem206;havoc cstrchr_#t~short207;cstrchr_#t~post208.base, cstrchr_#t~post208.offset := cstrchr_~s.base, cstrchr_~s.offset;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#t~post208.base, cstrchr_#t~post208.offset - 1;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset; 11#L366-5true [2021-10-15 20:02:52,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:02:52,842 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2021-10-15 20:02:52,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:02:52,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148424469] [2021-10-15 20:02:52,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:02:52,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:02:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:02:53,049 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:02:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:02:53,149 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:02:53,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:02:53,158 INFO L82 PathProgramCache]: Analyzing trace with hash 43797, now seen corresponding path program 1 times [2021-10-15 20:02:53,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:02:53,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470172401] [2021-10-15 20:02:53,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:02:53,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:02:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:02:53,197 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:02:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:02:53,236 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:02:53,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:02:53,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815409, now seen corresponding path program 1 times [2021-10-15 20:02:53,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:02:53,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103193595] [2021-10-15 20:02:53,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:02:53,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:02:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:02:53,334 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:02:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:02:53,412 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:02:54,231 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:02:54,232 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:02:54,232 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:02:54,232 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:02:54,233 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:02:54,233 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:02:54,233 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:02:54,233 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:02:54,233 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrchr_reverse_alloca.i_Iteration1_Lasso [2021-10-15 20:02:54,234 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:02:54,234 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:02:54,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:02:54,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:02:54,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:02:54,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:02:54,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:02:54,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:02:54,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:02:54,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:02:54,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:02:54,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:02:54,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:02:54,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:02:54,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:02:54,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:02:54,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:02:54,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:02:54,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:02:55,225 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:02:55,231 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:02:55,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:02:55,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:02:55,242 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:02:55,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:02:55,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:02:55,257 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:02:55,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:02:55,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:02:55,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:02:55,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 20:02:55,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:02:55,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:02:55,278 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:02:55,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-15 20:02:55,305 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:02:55,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:02:55,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:02:55,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 20:02:55,310 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:02:55,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:02:55,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:02:55,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:02:55,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:02:55,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:02:55,320 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:02:55,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:02:55,352 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:02:55,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-15 20:02:55,395 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:02:55,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:02:55,397 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:02:55,411 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:02:55,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:02:55,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:02:55,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:02:55,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:02:55,427 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:02:55,427 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:02:55,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 20:02:55,446 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:02:55,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-15 20:02:55,494 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:02:55,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:02:55,496 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:02:55,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 20:02:55,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:02:55,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:02:55,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:02:55,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:02:55,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:02:55,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:02:55,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:02:55,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:02:55,524 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:02:55,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-15 20:02:55,548 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:02:55,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:02:55,549 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:02:55,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:02:55,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:02:55,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:02:55,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:02:55,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:02:55,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:02:55,589 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:02:55,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:02:55,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-15 20:02:55,606 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:02:55,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-15 20:02:55,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:02:55,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:02:55,641 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:02:55,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-15 20:02:55,647 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:02:55,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:02:55,658 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:02:55,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:02:55,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:02:55,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:02:55,659 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:02:55,659 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:02:55,661 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:02:55,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-15 20:02:55,688 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:02:55,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:02:55,689 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:02:55,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-15 20:02:55,693 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:02:55,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:02:55,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:02:55,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:02:55,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:02:55,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:02:55,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:02:55,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:02:55,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:02:55,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-15 20:02:55,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:02:55,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:02:55,763 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:02:55,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-15 20:02:55,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:02:55,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:02:55,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:02:55,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:02:55,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:02:55,778 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:02:55,779 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:02:55,818 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:02:55,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-15 20:02:55,856 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:02:55,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:02:55,859 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:02:55,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-15 20:02:55,865 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 [2021-10-15 20:02:55,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:02:55,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:02:55,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:02:55,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:02:55,887 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:02:55,887 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:02:55,910 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 20:02:55,962 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-10-15 20:02:55,962 INFO L444 ModelExtractionUtils]: 14 out of 25 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-10-15 20:02:55,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:02:55,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:02:55,972 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:02:56,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-15 20:02:56,011 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 20:02:56,047 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-15 20:02:56,047 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 20:02:56,048 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrchr_~s.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc212.base)_1) = 2*ULTIMATE.start_cstrchr_~s.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc212.base)_1 Supporting invariants [] [2021-10-15 20:02:56,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-15 20:02:56,121 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2021-10-15 20:02:56,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:02:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:02:56,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-15 20:02:56,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:02:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:02:56,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-15 20:02:56,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:02:56,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:02:56,343 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-15 20:02:56,345 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:02:56,473 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 36 transitions. Complement of second has 6 states. [2021-10-15 20:02:56,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-15 20:02:56,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:02:56,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2021-10-15 20:02:56,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-15 20:02:56,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:02:56,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-15 20:02:56,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:02:56,480 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 6 letters. [2021-10-15 20:02:56,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:02:56,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 36 transitions. [2021-10-15 20:02:56,484 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 20:02:56,487 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2021-10-15 20:02:56,488 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 20:02:56,489 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 20:02:56,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 20:02:56,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:02:56,490 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:02:56,490 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:02:56,490 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:02:56,490 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 20:02:56,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-15 20:02:56,491 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 20:02:56,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-15 20:02:56,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 08:02:56 BoogieIcfgContainer [2021-10-15 20:02:56,498 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 20:02:56,499 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 20:02:56,499 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 20:02:56,499 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 20:02:56,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:02:52" (3/4) ... [2021-10-15 20:02:56,504 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 20:02:56,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 20:02:56,506 INFO L168 Benchmark]: Toolchain (without parser) took 5035.60 ms. Allocated memory was 81.8 MB in the beginning and 123.7 MB in the end (delta: 41.9 MB). Free memory was 42.0 MB in the beginning and 95.0 MB in the end (delta: -53.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:02:56,507 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory is still 59.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:02:56,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.43 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 41.8 MB in the beginning and 69.0 MB in the end (delta: -27.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 20:02:56,509 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.36 ms. Allocated memory is still 102.8 MB. Free memory was 69.0 MB in the beginning and 67.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:02:56,509 INFO L168 Benchmark]: Boogie Preprocessor took 31.28 ms. Allocated memory is still 102.8 MB. Free memory was 67.1 MB in the beginning and 66.1 MB in the end (delta: 959.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:02:56,510 INFO L168 Benchmark]: RCFGBuilder took 368.96 ms. Allocated memory is still 102.8 MB. Free memory was 66.1 MB in the beginning and 56.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 20:02:56,511 INFO L168 Benchmark]: BuchiAutomizer took 3796.62 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 56.0 MB in the beginning and 95.0 MB in the end (delta: -39.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:02:56,512 INFO L168 Benchmark]: Witness Printer took 5.14 ms. Allocated memory is still 123.7 MB. Free memory is still 95.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:02:56,516 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory is still 59.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 762.43 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 41.8 MB in the beginning and 69.0 MB in the end (delta: -27.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.36 ms. Allocated memory is still 102.8 MB. Free memory was 69.0 MB in the beginning and 67.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.28 ms. Allocated memory is still 102.8 MB. Free memory was 67.1 MB in the beginning and 66.1 MB in the end (delta: 959.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 368.96 ms. Allocated memory is still 102.8 MB. Free memory was 66.1 MB in the beginning and 56.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3796.62 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 56.0 MB in the beginning and 95.0 MB in the end (delta: -39.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.14 ms. Allocated memory is still 123.7 MB. Free memory is still 95.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * s + unknown-#length-unknown[__builtin_alloca(length * sizeof(char))] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 11 SDslu, 4 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.8ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital152 mio100 ax100 hnf100 lsp96 ukn86 mio100 lsp36 div150 bol100 ite100 ukn100 eq155 hnf73 smp100 dnf784 smp27 tf100 neg95 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 50ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-15 20:02:56,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-15 20:02:56,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5210094-5539-48f7-aea8-933210c8e9ab/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...