./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strchr_short.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strchr_short.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b9f420c703006a20f84c0f072fc483abdc031419ba97e1947a58423e06686a36 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:14:14,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:14:14,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:14:15,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:14:15,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:14:15,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:14:15,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:14:15,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:14:15,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:14:15,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:14:15,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:14:15,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:14:15,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:14:15,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:14:15,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:14:15,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:14:15,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:14:15,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:14:15,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:14:15,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:14:15,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:14:15,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:14:15,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:14:15,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:14:15,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:14:15,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:14:15,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:14:15,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:14:15,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:14:15,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:14:15,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:14:15,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:14:15,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:14:15,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:14:15,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:14:15,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:14:15,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:14:15,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:14:15,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:14:15,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:14:15,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:14:15,119 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 19:14:15,185 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:14:15,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:14:15,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:14:15,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:14:15,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:14:15,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:14:15,191 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:14:15,191 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:14:15,191 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:14:15,192 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:14:15,193 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:14:15,193 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:14:15,194 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:14:15,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:14:15,194 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:14:15,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:14:15,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:14:15,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:14:15,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:14:15,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:14:15,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:14:15,196 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:14:15,196 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:14:15,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:14:15,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:14:15,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:14:15,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:14:15,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:14:15,200 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:14:15,202 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:14:15,202 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_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9f420c703006a20f84c0f072fc483abdc031419ba97e1947a58423e06686a36 [2021-10-21 19:14:15,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:14:15,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:14:15,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:14:15,481 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:14:15,482 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:14:15,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-dietlibc/strchr_short.i [2021-10-21 19:14:15,581 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/data/0011217a5/87855128e7774b948a2085dfdd50b331/FLAGc894916b5 [2021-10-21 19:14:16,068 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:14:16,069 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/sv-benchmarks/c/termination-dietlibc/strchr_short.i [2021-10-21 19:14:16,082 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/data/0011217a5/87855128e7774b948a2085dfdd50b331/FLAGc894916b5 [2021-10-21 19:14:16,403 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/data/0011217a5/87855128e7774b948a2085dfdd50b331 [2021-10-21 19:14:16,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:14:16,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:14:16,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:14:16,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:14:16,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:14:16,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:14:16" (1/1) ... [2021-10-21 19:14:16,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e6a55ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:16, skipping insertion in model container [2021-10-21 19:14:16,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:14:16" (1/1) ... [2021-10-21 19:14:16,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:14:16,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:14:16,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:14:16,815 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:14:16,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:14:16,914 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:14:16,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:16 WrapperNode [2021-10-21 19:14:16,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:14:16,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:14:16,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:14:16,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:14:16,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:16" (1/1) ... [2021-10-21 19:14:16,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:16" (1/1) ... [2021-10-21 19:14:16,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:14:16,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:14:16,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:14:16,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:14:16,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:16" (1/1) ... [2021-10-21 19:14:16,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:16" (1/1) ... [2021-10-21 19:14:16,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:16" (1/1) ... [2021-10-21 19:14:16,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:16" (1/1) ... [2021-10-21 19:14:16,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:16" (1/1) ... [2021-10-21 19:14:16,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:16" (1/1) ... [2021-10-21 19:14:16,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:16" (1/1) ... [2021-10-21 19:14:16,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:14:16,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:14:16,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:14:16,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:14:16,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:16" (1/1) ... [2021-10-21 19:14:16,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:17,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:17,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:17,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:14:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:14:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:14:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:14:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:14:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:14:17,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:14:17,300 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:14:17,301 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 19:14:17,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:14:17 BoogieIcfgContainer [2021-10-21 19:14:17,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:14:17,304 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:14:17,304 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:14:17,310 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:14:17,311 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:14:17,311 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:14:16" (1/3) ... [2021-10-21 19:14:17,312 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@443ed6f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:14:17, skipping insertion in model container [2021-10-21 19:14:17,313 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:14:17,313 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:16" (2/3) ... [2021-10-21 19:14:17,313 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@443ed6f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:14:17, skipping insertion in model container [2021-10-21 19:14:17,313 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:14:17,314 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:14:17" (3/3) ... [2021-10-21 19:14:17,315 INFO L389 chiAutomizerObserver]: Analyzing ICFG strchr_short.i [2021-10-21 19:14:17,358 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:14:17,358 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:14:17,359 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:14:17,359 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:14:17,359 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:14:17,359 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:14:17,359 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:14:17,360 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:14:17,375 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:14:17,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:14:17,397 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:14:17,398 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:14:17,403 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:14:17,404 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:14:17,404 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:14:17,405 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:14:17,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:14:17,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:14:17,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:14:17,408 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:14:17,408 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:14:17,418 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~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~ret8.base, main_#t~ret8.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~the_int~0;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 10#L516true assume !(main_~in_len~0 < 1);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~the_int~0 := main_#t~nondet7;havoc main_#t~nondet7;strchr_#in~t.base, strchr_#in~t.offset, strchr_#in~c := main_~in~0.base, main_~in~0.offset, main_~the_int~0;havoc strchr_#res.base, strchr_#res.offset;havoc strchr_#t~mem2, strchr_#t~mem3, strchr_#t~pre4.base, strchr_#t~pre4.offset, strchr_~t.base, strchr_~t.offset, strchr_~c, strchr_~ch~0;strchr_~t.base, strchr_~t.offset := strchr_#in~t.base, strchr_#in~t.offset;strchr_~c := strchr_#in~c;havoc strchr_~ch~0;strchr_~ch~0 := (if strchr_~c % 256 <= 127 then strchr_~c % 256 else strchr_~c % 256 - 256); 6#L509-2true [2021-10-21 19:14:17,419 INFO L793 eck$LassoCheckResult]: Loop: 6#L509-2true assume !false;call strchr_#t~mem2 := read~int(strchr_~t.base, strchr_~t.offset, 1); 12#L510true assume !(strchr_#t~mem2 == strchr_~ch~0);havoc strchr_#t~mem2;call strchr_#t~mem3 := read~int(strchr_~t.base, strchr_~t.offset, 1); 9#L510-2true assume !(0 == strchr_#t~mem3);havoc strchr_#t~mem3;strchr_#t~pre4.base, strchr_#t~pre4.offset := strchr_~t.base, 1 + strchr_~t.offset;strchr_~t.base, strchr_~t.offset := strchr_~t.base, 1 + strchr_~t.offset;havoc strchr_#t~pre4.base, strchr_#t~pre4.offset; 6#L509-2true [2021-10-21 19:14:17,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:17,425 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-10-21 19:14:17,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:17,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450230889] [2021-10-21 19:14:17,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:17,435 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:17,538 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:14:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:17,577 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:14:17,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:17,581 INFO L82 PathProgramCache]: Analyzing trace with hash 44851, now seen corresponding path program 1 times [2021-10-21 19:14:17,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:17,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379673039] [2021-10-21 19:14:17,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:17,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:17,591 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:14:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:17,599 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:14:17,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:17,601 INFO L82 PathProgramCache]: Analyzing trace with hash 889574320, now seen corresponding path program 1 times [2021-10-21 19:14:17,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:17,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579312559] [2021-10-21 19:14:17,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:17,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:17,635 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:14:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:17,691 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:14:18,391 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:14:18,391 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:14:18,391 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:14:18,391 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:14:18,392 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:14:18,392 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:18,392 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:14:18,392 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:14:18,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: strchr_short.i_Iteration1_Lasso [2021-10-21 19:14:18,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:14:18,393 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:14:18,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:18,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:18,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:18,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:18,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:18,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:18,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:18,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:18,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:18,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:18,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:18,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:18,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:18,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:14:19,326 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:14:19,334 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:14:19,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:19,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:19,345 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:19,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:14:19,351 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:14:19,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:19,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:14:19,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:19,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:19,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:19,366 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:14:19,366 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:14:19,384 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:19,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:19,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:19,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:19,424 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:19,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:14:19,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:19,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:14:19,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:19,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:19,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:19,449 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:14:19,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:14:19,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:14:19,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:19,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:19,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:19,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:19,490 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:19,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:14:19,491 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:14:19,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:19,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:14:19,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:19,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:19,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:19,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:14:19,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:14:19,500 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:19,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:19,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:19,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:19,519 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:19,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:14:19,521 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:14:19,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:19,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:14:19,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:19,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:19,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:19,529 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:14:19,529 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:14:19,530 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:19,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:19,555 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:19,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:19,555 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:19,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:14:19,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:14:19,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:19,564 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:14:19,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:19,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:19,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:19,565 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:14:19,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:14:19,579 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:19,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:19,615 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:19,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:19,628 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:19,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:14:19,632 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:14:19,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:19,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:19,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:19,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:19,646 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:14:19,646 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:14:19,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:19,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:19,711 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:19,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:19,716 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:19,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:14:19,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:19,734 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:14:19,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:19,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:19,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:19,737 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:14:19,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:14:19,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:14:19,760 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:19,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:19,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:19,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:19,804 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:19,811 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:14:19,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:19,822 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:14:19,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:19,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:19,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:19,823 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:14:19,823 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:14:19,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:14:19,840 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:19,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:19,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:19,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:19,878 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:19,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:14:19,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:19,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:19,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:19,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:19,899 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:14:19,900 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:14:19,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:14:19,913 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:19,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:19,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:19,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:19,949 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:19,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 19:14:19,958 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:14:19,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:19,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:19,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:19,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:19,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:14:19,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:14:19,989 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:20,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:20,013 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:20,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:20,014 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:20,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 19:14:20,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:14:20,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:20,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:20,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:20,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:20,027 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:14:20,027 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:14:20,056 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:14:20,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:20,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:20,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:20,093 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:20,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 19:14:20,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:14:20,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:14:20,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:14:20,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:14:20,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:14:20,113 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:14:20,114 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:14:20,144 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:14:20,170 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-21 19:14:20,170 INFO L444 ModelExtractionUtils]: 15 out of 25 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-10-21 19:14:20,172 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:20,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:20,173 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:20,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 19:14:20,220 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:14:20,261 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:14:20,261 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:14:20,261 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_strchr_~t.base)_1, ULTIMATE.start_strchr_~t.offset) = 1*v_rep(select #length ULTIMATE.start_strchr_~t.base)_1 - 1*ULTIMATE.start_strchr_~t.offset Supporting invariants [] [2021-10-21 19:14:20,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:20,309 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2021-10-21 19:14:20,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:14:20,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:14:20,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:14:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:14:20,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:14:20,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:14:20,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:14:20,455 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:14:20,469 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-10-21 19:14:20,534 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) Result 27 states and 33 transitions. Complement of second has 5 states. [2021-10-21 19:14:20,536 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 [2021-10-21 19:14:20,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-10-21 19:14:20,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-10-21 19:14:20,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-21 19:14:20,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:14:20,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-21 19:14:20,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:14:20,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-21 19:14:20,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:14:20,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 33 transitions. [2021-10-21 19:14:20,548 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:14:20,550 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2021-10-21 19:14:20,550 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:14:20,550 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:14:20,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:14:20,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:14:20,551 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:14:20,551 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:14:20,551 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:14:20,551 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:14:20,551 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:14:20,551 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:14:20,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:14:20,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:14:20 BoogieIcfgContainer [2021-10-21 19:14:20,555 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:14:20,555 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:14:20,556 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:14:20,560 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:14:20,560 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:14:17" (3/4) ... [2021-10-21 19:14:20,563 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:14:20,563 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:14:20,565 INFO L168 Benchmark]: Toolchain (without parser) took 4156.75 ms. Allocated memory is still 132.1 MB. Free memory was 98.2 MB in the beginning and 56.3 MB in the end (delta: 41.9 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:14:20,566 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 86.0 MB. Free memory was 43.3 MB in the beginning and 43.2 MB in the end (delta: 40.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:14:20,569 INFO L168 Benchmark]: CACSL2BoogieTranslator took 507.28 ms. Allocated memory is still 132.1 MB. Free memory was 98.2 MB in the beginning and 103.3 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:14:20,575 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.95 ms. Allocated memory is still 132.1 MB. Free memory was 103.3 MB in the beginning and 101.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:14:20,575 INFO L168 Benchmark]: Boogie Preprocessor took 24.19 ms. Allocated memory is still 132.1 MB. Free memory was 101.5 MB in the beginning and 100.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:14:20,576 INFO L168 Benchmark]: RCFGBuilder took 321.02 ms. Allocated memory is still 132.1 MB. Free memory was 100.3 MB in the beginning and 90.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:14:20,576 INFO L168 Benchmark]: BuchiAutomizer took 3251.48 ms. Allocated memory is still 132.1 MB. Free memory was 90.3 MB in the beginning and 57.1 MB in the end (delta: 33.2 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:14:20,577 INFO L168 Benchmark]: Witness Printer took 7.51 ms. Allocated memory is still 132.1 MB. Free memory is still 56.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:14:20,582 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 86.0 MB. Free memory was 43.3 MB in the beginning and 43.2 MB in the end (delta: 40.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 507.28 ms. Allocated memory is still 132.1 MB. Free memory was 98.2 MB in the beginning and 103.3 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.95 ms. Allocated memory is still 132.1 MB. Free memory was 103.3 MB in the beginning and 101.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.19 ms. Allocated memory is still 132.1 MB. Free memory was 101.5 MB in the beginning and 100.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 321.02 ms. Allocated memory is still 132.1 MB. Free memory was 100.3 MB in the beginning and 90.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3251.48 ms. Allocated memory is still 132.1 MB. Free memory was 90.3 MB in the beginning and 57.1 MB in the end (delta: 33.2 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. * Witness Printer took 7.51 ms. Allocated memory is still 132.1 MB. Free memory is still 56.3 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 unknown-#length-unknown[t] + -1 * t and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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: 11 SDtfs, 20 SDslu, 5 SDs, 0 SdLazy, 7 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.9ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital147 mio100 ax100 hnf100 lsp111 ukn111 mio100 lsp34 div135 bol100 ite100 ukn100 eq159 hnf73 smp74 dnf281 smp56 tf100 neg93 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 60ms 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! [2021-10-21 19:14:20,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:14:20,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d650aafc-9f3d-4c05-8dbe-06c6721190d4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...