./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/list-ext-properties/simple-ext.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/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_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/list-ext-properties/simple-ext.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/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 32bit --witnessprinter.graph.data.programhash 79d8454f49f42d774b494771accf13f0b47382db45ac5cfdb4c7afee633f8cd7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:21:09,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:21:09,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:21:09,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:21:09,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:21:09,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:21:09,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:21:09,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:21:09,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:21:09,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:21:09,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:21:09,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:21:09,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:21:09,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:21:09,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:21:09,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:21:09,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:21:09,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:21:09,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:21:09,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:21:09,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:21:09,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:21:09,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:21:09,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:21:09,997 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:21:10,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:21:10,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:21:10,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:21:10,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:21:10,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:21:10,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:21:10,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:21:10,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:21:10,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:21:10,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:21:10,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:21:10,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:21:10,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:21:10,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:21:10,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:21:10,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:21:10,026 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:21:10,061 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:21:10,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:21:10,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:21:10,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:21:10,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:21:10,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:21:10,064 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:21:10,064 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:21:10,065 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:21:10,065 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:21:10,065 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:21:10,065 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:21:10,066 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:21:10,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:21:10,066 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:21:10,066 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:21:10,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:21:10,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:21:10,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:21:10,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:21:10,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:21:10,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:21:10,068 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:21:10,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:21:10,069 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:21:10,069 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:21:10,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:21:10,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:21:10,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:21:10,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:21:10,070 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:21:10,071 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:21:10,072 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:21:10,072 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_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79d8454f49f42d774b494771accf13f0b47382db45ac5cfdb4c7afee633f8cd7 [2021-10-21 20:21:10,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:21:10,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:21:10,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:21:10,375 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:21:10,376 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:21:10,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/list-ext-properties/simple-ext.i [2021-10-21 20:21:10,461 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/data/6bec8ae1f/d7af3b8d759b476dbfc9179ff5d4f8e4/FLAGb90cb6c09 [2021-10-21 20:21:11,073 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:21:11,074 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/sv-benchmarks/c/list-ext-properties/simple-ext.i [2021-10-21 20:21:11,091 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/data/6bec8ae1f/d7af3b8d759b476dbfc9179ff5d4f8e4/FLAGb90cb6c09 [2021-10-21 20:21:11,405 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/data/6bec8ae1f/d7af3b8d759b476dbfc9179ff5d4f8e4 [2021-10-21 20:21:11,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:21:11,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:21:11,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:21:11,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:21:11,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:21:11,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:21:11" (1/1) ... [2021-10-21 20:21:11,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d452ee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:11, skipping insertion in model container [2021-10-21 20:21:11,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:21:11" (1/1) ... [2021-10-21 20:21:11,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:21:11,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:21:11,904 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/sv-benchmarks/c/list-ext-properties/simple-ext.i[23272,23285] [2021-10-21 20:21:11,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:21:11,932 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:21:12,002 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/sv-benchmarks/c/list-ext-properties/simple-ext.i[23272,23285] [2021-10-21 20:21:12,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:21:12,041 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:21:12,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12 WrapperNode [2021-10-21 20:21:12,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:21:12,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:21:12,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:21:12,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:21:12,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:21:12,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:21:12,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:21:12,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:21:12,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:21:12,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:21:12,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:21:12,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:21:12,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (1/1) ... [2021-10-21 20:21:12,175 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:12,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:12,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:12,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:21:12,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 20:21:12,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 20:21:12,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 20:21:12,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 20:21:12,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:21:12,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 20:21:12,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 20:21:12,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:21:12,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:21:12,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:21:12,689 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:21:12,689 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-21 20:21:12,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:21:12 BoogieIcfgContainer [2021-10-21 20:21:12,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:21:12,693 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:21:12,693 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:21:12,697 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:21:12,698 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:21:12,699 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:21:11" (1/3) ... [2021-10-21 20:21:12,701 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b3c2e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:21:12, skipping insertion in model container [2021-10-21 20:21:12,701 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:21:12,701 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:21:12" (2/3) ... [2021-10-21 20:21:12,702 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b3c2e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:21:12, skipping insertion in model container [2021-10-21 20:21:12,702 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:21:12,702 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:21:12" (3/3) ... [2021-10-21 20:21:12,704 INFO L389 chiAutomizerObserver]: Analyzing ICFG simple-ext.i [2021-10-21 20:21:12,764 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:21:12,764 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:21:12,764 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:21:12,765 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:21:12,765 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:21:12,765 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:21:12,765 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:21:12,765 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:21:12,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:12,804 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2021-10-21 20:21:12,805 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:21:12,805 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:21:12,812 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 20:21:12,813 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:21:12,813 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:21:12,814 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:12,816 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2021-10-21 20:21:12,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:21:12,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:21:12,817 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 20:21:12,817 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:21:12,826 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 10#L-1true havoc main_#res;havoc main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~post9, main_#t~nondet6, main_#t~mem10, main_#t~mem11.base, main_#t~mem11.offset, main_#t~post12, main_#t~mem13.base, main_#t~mem13.offset, main_~tmp~0.base, main_~tmp~0.offset, main_~a~0.base, main_~a~0.offset, main_~t~0.base, main_~t~0.offset, main_~p~0.base, main_~p~0.offset, main_~i~0;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnHeap(8);main_~a~0.base, main_~a~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;havoc main_#t~malloc5.base, main_#t~malloc5.offset; 11#L533true assume main_~a~0.base == 0 && main_~a~0.offset == 0;myexit_#in~s := 1;havoc myexit_~s;myexit_~s := myexit_#in~s; 3#L525true [2021-10-21 20:21:12,826 INFO L793 eck$LassoCheckResult]: Loop: 3#L525true assume true; 3#L525true [2021-10-21 20:21:12,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:12,834 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-10-21 20:21:12,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:12,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677735875] [2021-10-21 20:21:12,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:12,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:13,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:21:13,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:21:13,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677735875] [2021-10-21 20:21:13,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677735875] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:21:13,042 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:21:13,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:21:13,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140460777] [2021-10-21 20:21:13,066 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:21:13,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:13,067 INFO L82 PathProgramCache]: Analyzing trace with hash 101, now seen corresponding path program 1 times [2021-10-21 20:21:13,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:13,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540620312] [2021-10-21 20:21:13,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:13,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:13,075 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:13,095 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:13,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:21:13,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:21:13,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:21:13,128 INFO L87 Difference]: Start difference. First operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:13,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:21:13,149 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2021-10-21 20:21:13,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:21:13,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 22 transitions. [2021-10-21 20:21:13,154 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-10-21 20:21:13,158 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 14 states and 17 transitions. [2021-10-21 20:21:13,159 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-21 20:21:13,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-21 20:21:13,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2021-10-21 20:21:13,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:21:13,161 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-10-21 20:21:13,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2021-10-21 20:21:13,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-21 20:21:13,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:13,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2021-10-21 20:21:13,192 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-10-21 20:21:13,192 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-10-21 20:21:13,192 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:21:13,193 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2021-10-21 20:21:13,193 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-10-21 20:21:13,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:21:13,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:21:13,194 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 20:21:13,194 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:21:13,195 INFO L791 eck$LassoCheckResult]: Stem: 50#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 51#L-1 havoc main_#res;havoc main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~post9, main_#t~nondet6, main_#t~mem10, main_#t~mem11.base, main_#t~mem11.offset, main_#t~post12, main_#t~mem13.base, main_#t~mem13.offset, main_~tmp~0.base, main_~tmp~0.offset, main_~a~0.base, main_~a~0.offset, main_~t~0.base, main_~t~0.offset, main_~p~0.base, main_~p~0.offset, main_~i~0;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnHeap(8);main_~a~0.base, main_~a~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;havoc main_#t~malloc5.base, main_#t~malloc5.offset; 56#L533 assume !(main_~a~0.base == 0 && main_~a~0.offset == 0); 57#L533-1 havoc main_~t~0.base, main_~t~0.offset;main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 49#L537-2 [2021-10-21 20:21:13,195 INFO L793 eck$LassoCheckResult]: Loop: 49#L537-2 assume !!(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6;call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(8);main_~t~0.base, main_~t~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;havoc main_#t~malloc7.base, main_#t~malloc7.offset; 58#L540 assume !(main_~t~0.base == 0 && main_~t~0.offset == 0); 48#L540-1 call write~$Pointer$(main_~t~0.base, main_~t~0.offset, main_~p~0.base, 4 + main_~p~0.offset, 4);call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_#t~mem8.base, main_#t~mem8.offset;havoc main_#t~mem8.base, main_#t~mem8.offset;main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 49#L537-2 [2021-10-21 20:21:13,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:13,196 INFO L82 PathProgramCache]: Analyzing trace with hash 925701, now seen corresponding path program 1 times [2021-10-21 20:21:13,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:13,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927094007] [2021-10-21 20:21:13,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:13,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:13,231 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:13,255 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:13,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:13,256 INFO L82 PathProgramCache]: Analyzing trace with hash 48852, now seen corresponding path program 1 times [2021-10-21 20:21:13,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:13,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236003426] [2021-10-21 20:21:13,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:13,257 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:13,294 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:13,343 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:13,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:13,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1807773776, now seen corresponding path program 1 times [2021-10-21 20:21:13,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:13,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890481665] [2021-10-21 20:21:13,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:13,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:13,385 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:13,430 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:14,414 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:21:14,415 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:21:14,415 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:21:14,415 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:21:14,415 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:21:14,416 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:14,416 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:21:14,416 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:21:14,416 INFO L133 ssoRankerPreferences]: Filename of dumped script: simple-ext.i_Iteration2_Lasso [2021-10-21 20:21:14,417 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:21:14,417 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:21:14,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:14,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:21:15,534 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:21:15,539 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:21:15,541 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:15,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:15,544 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:15,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 20:21:15,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:15,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:15,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:15,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:15,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:15,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:15,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:15,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:15,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:15,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:15,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:15,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:15,618 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:15,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 20:21:15,625 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:15,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:15,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:15,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:15,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:15,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:15,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:15,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:15,672 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:15,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:15,707 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:15,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:15,709 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:15,715 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:15,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:15,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:15,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:15,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:15,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:15,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:15,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:15,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 20:21:15,744 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:15,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:15,771 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:15,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:15,773 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:15,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 20:21:15,785 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:15,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:15,793 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:15,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:15,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:15,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:15,796 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:15,796 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:15,809 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:15,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:15,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:15,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:15,853 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:15,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:15,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:15,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:15,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:15,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:15,882 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:15,884 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:15,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 20:21:15,908 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:15,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-21 20:21:15,946 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:15,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:15,948 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:15,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 20:21:15,970 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:15,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:15,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:15,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:15,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:15,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:15,987 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:15,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:16,002 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-10-21 20:21:16,027 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,028 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 20:21:16,034 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:16,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,045 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:16,046 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:16,072 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,107 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,109 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:16,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,135 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:16,135 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:16,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 20:21:16,156 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-21 20:21:16,186 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,188 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 20:21:16,192 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:16,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:16,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:16,201 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:16,204 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,229 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 20:21:16,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:16,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:16,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,244 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:16,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:16,256 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,284 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,286 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 20:21:16,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:16,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,298 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:16,298 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:16,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,360 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,365 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 20:21:16,373 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:16,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:16,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:16,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:16,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,439 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,440 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:16,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 20:21:16,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:16,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:16,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:16,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,485 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,486 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 20:21:16,489 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:16,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:16,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,498 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 20:21:16,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,500 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:21:16,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:16,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,528 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 20:21:16,534 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:16,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,543 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:16,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:16,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:16,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,574 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,577 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 20:21:16,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:16,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,593 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:16,593 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:16,617 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,645 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,647 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 20:21:16,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:16,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,662 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:16,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,663 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:16,663 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:16,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,716 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:16,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:16,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:16,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:16,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 20:21:16,772 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,805 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,807 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 20:21:16,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:16,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:16,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:16,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:16,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,853 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 20:21:16,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:16,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,867 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:16,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,868 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:16,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:16,904 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:16,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:16,943 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:16,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:16,945 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:16,948 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:16,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:16,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:16,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:16,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:16,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:16,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:16,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:16,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 20:21:16,972 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:17,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:17,011 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:17,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:17,013 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:17,016 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:17,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:17,028 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:17,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:17,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:17,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:17,030 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:17,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:17,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 20:21:17,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:17,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-21 20:21:17,081 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:17,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:17,082 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:17,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 20:21:17,083 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:17,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:17,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:17,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:17,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:17,098 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:17,098 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:17,121 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:17,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:17,142 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:17,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:17,143 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:17,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 20:21:17,152 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:17,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:17,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:17,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:17,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:17,162 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:17,162 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:17,189 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:17,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:17,214 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:17,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:17,215 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:17,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 20:21:17,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:17,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:17,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:17,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:17,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:17,226 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:17,226 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:17,229 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:17,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:17,254 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:17,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:17,255 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:17,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 20:21:17,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:17,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:17,267 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:21:17,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:17,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:17,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:17,268 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:21:17,268 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:21:17,269 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:21:17,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-21 20:21:17,291 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:17,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:17,292 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:17,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-21 20:21:17,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:21:17,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:21:17,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:21:17,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:21:17,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:21:17,305 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:21:17,305 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:21:17,344 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:21:17,359 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-21 20:21:17,359 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-10-21 20:21:17,361 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:21:17,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:17,382 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:21:17,385 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:21:17,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 20:21:17,410 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 20:21:17,411 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:21:17,411 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 59 Supporting invariants [] [2021-10-21 20:21:17,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:17,501 INFO L297 tatePredicateManager]: 8 out of 8 supporting invariants were superfluous and have been removed [2021-10-21 20:21:17,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:17,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:21:17,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:21:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:17,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:21:17,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:21:17,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:21:17,668 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:21:17,669 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 7 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) [2021-10-21 20:21:17,728 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 7. 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 19 states and 26 transitions. Complement of second has 7 states. [2021-10-21 20:21:17,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 20:21:17,730 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) [2021-10-21 20:21:17,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-10-21 20:21:17,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-21 20:21:17,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:21:17,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-21 20:21:17,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:21:17,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 6 letters. [2021-10-21 20:21:17,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:21:17,736 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2021-10-21 20:21:17,742 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 [2021-10-21 20:21:17,745 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 16 states and 21 transitions. [2021-10-21 20:21:17,745 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-21 20:21:17,745 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-21 20:21:17,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2021-10-21 20:21:17,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:21:17,746 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-10-21 20:21:17,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2021-10-21 20:21:17,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-21 20:21:17,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:17,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2021-10-21 20:21:17,749 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-10-21 20:21:17,749 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-10-21 20:21:17,749 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:21:17,750 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2021-10-21 20:21:17,753 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 [2021-10-21 20:21:17,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:21:17,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:21:17,755 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:21:17,755 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:21:17,756 INFO L791 eck$LassoCheckResult]: Stem: 160#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 161#L-1 havoc main_#res;havoc main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~post9, main_#t~nondet6, main_#t~mem10, main_#t~mem11.base, main_#t~mem11.offset, main_#t~post12, main_#t~mem13.base, main_#t~mem13.offset, main_~tmp~0.base, main_~tmp~0.offset, main_~a~0.base, main_~a~0.offset, main_~t~0.base, main_~t~0.offset, main_~p~0.base, main_~p~0.offset, main_~i~0;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnHeap(8);main_~a~0.base, main_~a~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;havoc main_#t~malloc5.base, main_#t~malloc5.offset; 166#L533 assume !(main_~a~0.base == 0 && main_~a~0.offset == 0); 167#L533-1 havoc main_~t~0.base, main_~t~0.offset;main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 168#L537-2 assume !(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6; 163#L537-3 call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call write~$Pointer$(0, 0, main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 164#L549-2 [2021-10-21 20:21:17,757 INFO L793 eck$LassoCheckResult]: Loop: 164#L549-2 assume !!(main_~p~0.base != 0 || main_~p~0.offset != 0);call main_#t~mem10 := read~int(main_~p~0.base, main_~p~0.offset, 4); 172#L550 assume !(1 != main_#t~mem10);havoc main_#t~mem10; 173#L550-2 call main_#t~mem11.base, main_#t~mem11.offset := read~$Pointer$(main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_#t~mem11.base, main_#t~mem11.offset;havoc main_#t~mem11.base, main_#t~mem11.offset;main_#t~post12 := main_~i~0;main_~i~0 := 1 + main_#t~post12;havoc main_#t~post12; 164#L549-2 [2021-10-21 20:21:17,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:17,757 INFO L82 PathProgramCache]: Analyzing trace with hash 889599219, now seen corresponding path program 1 times [2021-10-21 20:21:17,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:17,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408729902] [2021-10-21 20:21:17,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:17,758 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:17,810 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:17,859 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:17,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:17,860 INFO L82 PathProgramCache]: Analyzing trace with hash 69737, now seen corresponding path program 1 times [2021-10-21 20:21:17,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:17,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446688531] [2021-10-21 20:21:17,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:17,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:17,868 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:17,892 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:17,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:17,897 INFO L82 PathProgramCache]: Analyzing trace with hash 2102156855, now seen corresponding path program 1 times [2021-10-21 20:21:17,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:17,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639137385] [2021-10-21 20:21:17,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:17,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:18,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:21:18,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:21:18,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639137385] [2021-10-21 20:21:18,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639137385] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:21:18,006 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:21:18,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 20:21:18,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509272147] [2021-10-21 20:21:18,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:21:18,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:21:18,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:21:18,120 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. cyclomatic complexity: 9 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:18,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:21:18,247 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2021-10-21 20:21:18,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:21:18,248 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 36 transitions. [2021-10-21 20:21:18,249 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 6 [2021-10-21 20:21:18,252 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 29 states and 35 transitions. [2021-10-21 20:21:18,252 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-10-21 20:21:18,253 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-21 20:21:18,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 35 transitions. [2021-10-21 20:21:18,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:21:18,253 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-10-21 20:21:18,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 35 transitions. [2021-10-21 20:21:18,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 18. [2021-10-21 20:21:18,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:18,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-10-21 20:21:18,258 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-21 20:21:18,258 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-21 20:21:18,258 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 20:21:18,258 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2021-10-21 20:21:18,259 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 [2021-10-21 20:21:18,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:21:18,259 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:21:18,260 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:21:18,260 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:21:18,260 INFO L791 eck$LassoCheckResult]: Stem: 220#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 221#L-1 havoc main_#res;havoc main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~post9, main_#t~nondet6, main_#t~mem10, main_#t~mem11.base, main_#t~mem11.offset, main_#t~post12, main_#t~mem13.base, main_#t~mem13.offset, main_~tmp~0.base, main_~tmp~0.offset, main_~a~0.base, main_~a~0.offset, main_~t~0.base, main_~t~0.offset, main_~p~0.base, main_~p~0.offset, main_~i~0;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnHeap(8);main_~a~0.base, main_~a~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;havoc main_#t~malloc5.base, main_#t~malloc5.offset; 226#L533 assume !(main_~a~0.base == 0 && main_~a~0.offset == 0); 227#L533-1 havoc main_~t~0.base, main_~t~0.offset;main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 231#L537-2 assume !!(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6;call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(8);main_~t~0.base, main_~t~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;havoc main_#t~malloc7.base, main_#t~malloc7.offset; 228#L540 assume main_~t~0.base == 0 && main_~t~0.offset == 0;myexit_#in~s := 1;havoc myexit_~s;myexit_~s := myexit_#in~s; 229#L525-1 [2021-10-21 20:21:18,260 INFO L793 eck$LassoCheckResult]: Loop: 229#L525-1 assume true; 229#L525-1 [2021-10-21 20:21:18,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:18,261 INFO L82 PathProgramCache]: Analyzing trace with hash 889599272, now seen corresponding path program 1 times [2021-10-21 20:21:18,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:18,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547876024] [2021-10-21 20:21:18,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:18,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:18,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:21:18,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:21:18,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547876024] [2021-10-21 20:21:18,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547876024] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:21:18,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:21:18,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:21:18,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807196051] [2021-10-21 20:21:18,293 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:21:18,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:18,294 INFO L82 PathProgramCache]: Analyzing trace with hash 102, now seen corresponding path program 1 times [2021-10-21 20:21:18,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:18,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312825715] [2021-10-21 20:21:18,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:18,295 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:18,299 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:18,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:18,302 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:18,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:21:18,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:21:18,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:21:18,307 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand has 3 states, 2 states have (on average 3.0) 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 20:21:18,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:21:18,317 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2021-10-21 20:21:18,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:21:18,318 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 23 transitions. [2021-10-21 20:21:18,319 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 [2021-10-21 20:21:18,319 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 18 states and 21 transitions. [2021-10-21 20:21:18,319 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-10-21 20:21:18,320 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-10-21 20:21:18,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2021-10-21 20:21:18,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:21:18,320 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-21 20:21:18,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2021-10-21 20:21:18,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2021-10-21 20:21:18,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:18,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-10-21 20:21:18,323 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-21 20:21:18,323 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-21 20:21:18,324 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 20:21:18,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-10-21 20:21:18,324 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-21 20:21:18,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:21:18,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:21:18,325 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:21:18,325 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 20:21:18,326 INFO L791 eck$LassoCheckResult]: Stem: 263#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 264#L-1 havoc main_#res;havoc main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~post9, main_#t~nondet6, main_#t~mem10, main_#t~mem11.base, main_#t~mem11.offset, main_#t~post12, main_#t~mem13.base, main_#t~mem13.offset, main_~tmp~0.base, main_~tmp~0.offset, main_~a~0.base, main_~a~0.offset, main_~t~0.base, main_~t~0.offset, main_~p~0.base, main_~p~0.offset, main_~i~0;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnHeap(8);main_~a~0.base, main_~a~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;havoc main_#t~malloc5.base, main_#t~malloc5.offset; 269#L533 assume !(main_~a~0.base == 0 && main_~a~0.offset == 0); 270#L533-1 havoc main_~t~0.base, main_~t~0.offset;main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 271#L537-2 assume !(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6; 267#L537-3 call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call write~$Pointer$(0, 0, main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 268#L549-2 assume !(main_~p~0.base != 0 || main_~p~0.offset != 0); 266#L549-3 main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset; 265#L557-2 [2021-10-21 20:21:18,326 INFO L793 eck$LassoCheckResult]: Loop: 265#L557-2 assume !!(main_~p~0.base != 0 || main_~p~0.offset != 0);call main_#t~mem13.base, main_#t~mem13.offset := read~$Pointer$(main_~p~0.base, 4 + main_~p~0.offset, 4);main_~tmp~0.base, main_~tmp~0.offset := main_#t~mem13.base, main_#t~mem13.offset;havoc main_#t~mem13.base, main_#t~mem13.offset;call ULTIMATE.dealloc(main_~p~0.base, main_~p~0.offset);main_~p~0.base, main_~p~0.offset := main_~tmp~0.base, main_~tmp~0.offset; 265#L557-2 [2021-10-21 20:21:18,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:18,327 INFO L82 PathProgramCache]: Analyzing trace with hash 206358786, now seen corresponding path program 1 times [2021-10-21 20:21:18,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:18,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114363983] [2021-10-21 20:21:18,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:18,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:18,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-21 20:21:18,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:21:18,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:21:18,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114363983] [2021-10-21 20:21:18,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114363983] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:21:18,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:21:18,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:21:18,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071808265] [2021-10-21 20:21:18,372 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:21:18,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:18,373 INFO L82 PathProgramCache]: Analyzing trace with hash 93, now seen corresponding path program 1 times [2021-10-21 20:21:18,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:18,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467736017] [2021-10-21 20:21:18,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:18,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:18,379 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:18,385 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:18,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:21:18,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:21:18,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:21:18,476 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:18,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:21:18,520 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2021-10-21 20:21:18,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:21:18,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 24 transitions. [2021-10-21 20:21:18,522 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-21 20:21:18,523 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 20 states and 22 transitions. [2021-10-21 20:21:18,523 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-10-21 20:21:18,523 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-10-21 20:21:18,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 22 transitions. [2021-10-21 20:21:18,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:21:18,524 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-10-21 20:21:18,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 22 transitions. [2021-10-21 20:21:18,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2021-10-21 20:21:18,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:18,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-10-21 20:21:18,527 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-21 20:21:18,527 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-21 20:21:18,527 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 20:21:18,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2021-10-21 20:21:18,528 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-21 20:21:18,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:21:18,528 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:21:18,528 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:21:18,529 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:21:18,529 INFO L791 eck$LassoCheckResult]: Stem: 310#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 311#L-1 havoc main_#res;havoc main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~post9, main_#t~nondet6, main_#t~mem10, main_#t~mem11.base, main_#t~mem11.offset, main_#t~post12, main_#t~mem13.base, main_#t~mem13.offset, main_~tmp~0.base, main_~tmp~0.offset, main_~a~0.base, main_~a~0.offset, main_~t~0.base, main_~t~0.offset, main_~p~0.base, main_~p~0.offset, main_~i~0;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnHeap(8);main_~a~0.base, main_~a~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;havoc main_#t~malloc5.base, main_#t~malloc5.offset; 316#L533 assume !(main_~a~0.base == 0 && main_~a~0.offset == 0); 317#L533-1 havoc main_~t~0.base, main_~t~0.offset;main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 319#L537-2 assume !!(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6;call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(8);main_~t~0.base, main_~t~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;havoc main_#t~malloc7.base, main_#t~malloc7.offset; 318#L540 assume !(main_~t~0.base == 0 && main_~t~0.offset == 0); 308#L540-1 call write~$Pointer$(main_~t~0.base, main_~t~0.offset, main_~p~0.base, 4 + main_~p~0.offset, 4);call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_#t~mem8.base, main_#t~mem8.offset;havoc main_#t~mem8.base, main_#t~mem8.offset;main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 309#L537-2 assume !(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6; 313#L537-3 call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call write~$Pointer$(0, 0, main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 314#L549-2 assume !!(main_~p~0.base != 0 || main_~p~0.offset != 0);call main_#t~mem10 := read~int(main_~p~0.base, main_~p~0.offset, 4); 320#L550 [2021-10-21 20:21:18,529 INFO L793 eck$LassoCheckResult]: Loop: 320#L550 assume !(1 != main_#t~mem10);havoc main_#t~mem10; 321#L550-2 call main_#t~mem11.base, main_#t~mem11.offset := read~$Pointer$(main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_#t~mem11.base, main_#t~mem11.offset;havoc main_#t~mem11.base, main_#t~mem11.offset;main_#t~post12 := main_~i~0;main_~i~0 := 1 + main_#t~post12;havoc main_#t~post12; 322#L549-2 assume !!(main_~p~0.base != 0 || main_~p~0.offset != 0);call main_#t~mem10 := read~int(main_~p~0.base, main_~p~0.offset, 4); 320#L550 [2021-10-21 20:21:18,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:18,530 INFO L82 PathProgramCache]: Analyzing trace with hash 793653610, now seen corresponding path program 1 times [2021-10-21 20:21:18,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:18,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946556574] [2021-10-21 20:21:18,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:18,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:18,552 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:18,579 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:18,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:18,580 INFO L82 PathProgramCache]: Analyzing trace with hash 76517, now seen corresponding path program 2 times [2021-10-21 20:21:18,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:18,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820686737] [2021-10-21 20:21:18,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:18,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:18,586 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:18,598 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:18,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:18,599 INFO L82 PathProgramCache]: Analyzing trace with hash -60222244, now seen corresponding path program 1 times [2021-10-21 20:21:18,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:18,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707229648] [2021-10-21 20:21:18,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:18,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:18,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:21:18,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:21:18,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707229648] [2021-10-21 20:21:18,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707229648] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:21:18,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892818022] [2021-10-21 20:21:18,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:18,767 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:21:18,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:18,773 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:21:18,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-21 20:21:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:18,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-21 20:21:18,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:21:18,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-21 20:21:18,983 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-21 20:21:18,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-21 20:21:19,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:21:19,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-21 20:21:19,188 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size [2021-10-21 20:21:19,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 22 [2021-10-21 20:21:19,247 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-21 20:21:19,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 16 [2021-10-21 20:21:19,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:21:19,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892818022] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:21:19,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:21:19,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2021-10-21 20:21:19,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643080628] [2021-10-21 20:21:19,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:21:19,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 20:21:19,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-21 20:21:19,389 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. cyclomatic complexity: 5 Second operand has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:19,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:21:19,602 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2021-10-21 20:21:19,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 20:21:19,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 27 transitions. [2021-10-21 20:21:19,603 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-21 20:21:19,604 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 22 states and 24 transitions. [2021-10-21 20:21:19,604 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-21 20:21:19,604 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-21 20:21:19,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 24 transitions. [2021-10-21 20:21:19,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:21:19,605 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 24 transitions. [2021-10-21 20:21:19,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 24 transitions. [2021-10-21 20:21:19,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2021-10-21 20:21:19,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:19,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2021-10-21 20:21:19,608 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-10-21 20:21:19,609 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-10-21 20:21:19,609 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-21 20:21:19,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 20 transitions. [2021-10-21 20:21:19,610 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-21 20:21:19,610 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:21:19,610 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:21:19,611 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:21:19,611 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:21:19,611 INFO L791 eck$LassoCheckResult]: Stem: 409#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13); 410#L-1 havoc main_#res;havoc main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~post9, main_#t~nondet6, main_#t~mem10, main_#t~mem11.base, main_#t~mem11.offset, main_#t~post12, main_#t~mem13.base, main_#t~mem13.offset, main_~tmp~0.base, main_~tmp~0.offset, main_~a~0.base, main_~a~0.offset, main_~t~0.base, main_~t~0.offset, main_~p~0.base, main_~p~0.offset, main_~i~0;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnHeap(8);main_~a~0.base, main_~a~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;havoc main_#t~malloc5.base, main_#t~malloc5.offset; 415#L533 assume !(main_~a~0.base == 0 && main_~a~0.offset == 0); 416#L533-1 havoc main_~t~0.base, main_~t~0.offset;main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 419#L537-2 assume !!(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6;call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(8);main_~t~0.base, main_~t~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;havoc main_#t~malloc7.base, main_#t~malloc7.offset; 420#L540 assume !(main_~t~0.base == 0 && main_~t~0.offset == 0); 407#L540-1 call write~$Pointer$(main_~t~0.base, main_~t~0.offset, main_~p~0.base, 4 + main_~p~0.offset, 4);call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_#t~mem8.base, main_#t~mem8.offset;havoc main_#t~mem8.base, main_#t~mem8.offset;main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 408#L537-2 assume !!(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6;call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(8);main_~t~0.base, main_~t~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;havoc main_#t~malloc7.base, main_#t~malloc7.offset; 417#L540 assume !(main_~t~0.base == 0 && main_~t~0.offset == 0); 418#L540-1 call write~$Pointer$(main_~t~0.base, main_~t~0.offset, main_~p~0.base, 4 + main_~p~0.offset, 4);call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_#t~mem8.base, main_#t~mem8.offset;havoc main_#t~mem8.base, main_#t~mem8.offset;main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 424#L537-2 assume !(main_~i~0 < 30 && 0 != main_#t~nondet6);havoc main_#t~nondet6; 412#L537-3 call write~int(main_~i~0, main_~p~0.base, main_~p~0.offset, 4);call write~$Pointer$(0, 0, main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_~a~0.base, main_~a~0.offset;main_~i~0 := 0; 413#L549-2 assume !!(main_~p~0.base != 0 || main_~p~0.offset != 0);call main_#t~mem10 := read~int(main_~p~0.base, main_~p~0.offset, 4); 421#L550 [2021-10-21 20:21:19,611 INFO L793 eck$LassoCheckResult]: Loop: 421#L550 assume !(1 != main_#t~mem10);havoc main_#t~mem10; 422#L550-2 call main_#t~mem11.base, main_#t~mem11.offset := read~$Pointer$(main_~p~0.base, 4 + main_~p~0.offset, 4);main_~p~0.base, main_~p~0.offset := main_#t~mem11.base, main_#t~mem11.offset;havoc main_#t~mem11.base, main_#t~mem11.offset;main_#t~post12 := main_~i~0;main_~i~0 := 1 + main_#t~post12;havoc main_#t~post12; 423#L549-2 assume !!(main_~p~0.base != 0 || main_~p~0.offset != 0);call main_#t~mem10 := read~int(main_~p~0.base, main_~p~0.offset, 4); 421#L550 [2021-10-21 20:21:19,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:19,612 INFO L82 PathProgramCache]: Analyzing trace with hash -8921739, now seen corresponding path program 2 times [2021-10-21 20:21:19,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:19,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887850337] [2021-10-21 20:21:19,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:19,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:19,643 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:19,737 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:19,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:19,749 INFO L82 PathProgramCache]: Analyzing trace with hash 76517, now seen corresponding path program 3 times [2021-10-21 20:21:19,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:19,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670819088] [2021-10-21 20:21:19,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:19,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:19,758 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:21:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:21:19,765 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:21:19,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:21:19,767 INFO L82 PathProgramCache]: Analyzing trace with hash 500492529, now seen corresponding path program 2 times [2021-10-21 20:21:19,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:21:19,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123537026] [2021-10-21 20:21:19,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:21:19,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:21:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:21:19,981 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:21:19,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:21:19,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123537026] [2021-10-21 20:21:19,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123537026] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:21:19,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387949538] [2021-10-21 20:21:19,982 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:21:19,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:21:19,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:21:19,984 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:21:20,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-21 20:21:20,108 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:21:20,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:21:20,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-21 20:21:20,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:21:20,211 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-21 20:21:20,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-21 20:21:20,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-21 20:21:20,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:21:20,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-10-21 20:21:20,359 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-21 20:21:20,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-10-21 20:21:20,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-10-21 20:21:20,458 INFO L354 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2021-10-21 20:21:20,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 15 [2021-10-21 20:21:20,560 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size [2021-10-21 20:21:20,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 22 [2021-10-21 20:21:20,618 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-21 20:21:20,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 16 [2021-10-21 20:21:20,629 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:21:20,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387949538] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:21:20,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:21:20,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 16 [2021-10-21 20:21:20,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687517154] [2021-10-21 20:21:20,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:21:20,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-21 20:21:20,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-10-21 20:21:20,749 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. cyclomatic complexity: 5 Second operand has 16 states, 16 states have (on average 1.75) internal successors, (28), 16 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:21:20,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:21:20,879 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-10-21 20:21:20,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:21:20,879 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 14 transitions. [2021-10-21 20:21:20,880 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:21:20,880 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2021-10-21 20:21:20,880 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:21:20,880 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:21:20,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:21:20,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:21:20,881 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:21:20,881 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:21:20,881 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:21:20,881 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-21 20:21:20,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:21:20,881 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:21:20,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 20:21:20,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:21:20 BoogieIcfgContainer [2021-10-21 20:21:20,888 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:21:20,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:21:20,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:21:20,889 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:21:20,889 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:21:12" (3/4) ... [2021-10-21 20:21:20,893 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:21:20,893 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:21:20,894 INFO L168 Benchmark]: Toolchain (without parser) took 9483.86 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 73.5 MB in the beginning and 51.9 MB in the end (delta: 21.6 MB). Peak memory consumption was 66.9 MB. Max. memory is 16.1 GB. [2021-10-21 20:21:20,894 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 104.9 MB. Free memory is still 59.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:21:20,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.79 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 73.5 MB in the beginning and 94.0 MB in the end (delta: -20.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:21:20,895 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.47 ms. Allocated memory is still 125.8 MB. Free memory was 94.0 MB in the beginning and 92.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:21:20,895 INFO L168 Benchmark]: Boogie Preprocessor took 46.95 ms. Allocated memory is still 125.8 MB. Free memory was 92.0 MB in the beginning and 90.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:21:20,896 INFO L168 Benchmark]: RCFGBuilder took 528.11 ms. Allocated memory is still 125.8 MB. Free memory was 90.8 MB in the beginning and 79.1 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:21:20,896 INFO L168 Benchmark]: BuchiAutomizer took 8195.04 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 78.7 MB in the beginning and 52.9 MB in the end (delta: 25.8 MB). Peak memory consumption was 52.9 MB. Max. memory is 16.1 GB. [2021-10-21 20:21:20,897 INFO L168 Benchmark]: Witness Printer took 4.32 ms. Allocated memory is still 151.0 MB. Free memory was 52.9 MB in the beginning and 51.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:21:20,899 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 104.9 MB. Free memory is still 59.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 628.79 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 73.5 MB in the beginning and 94.0 MB in the end (delta: -20.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.47 ms. Allocated memory is still 125.8 MB. Free memory was 94.0 MB in the beginning and 92.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.95 ms. Allocated memory is still 125.8 MB. Free memory was 92.0 MB in the beginning and 90.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 528.11 ms. Allocated memory is still 125.8 MB. Free memory was 90.8 MB in the beginning and 79.1 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 8195.04 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 78.7 MB in the beginning and 52.9 MB in the end (delta: 25.8 MB). Peak memory consumption was 52.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.32 ms. Allocated memory is still 151.0 MB. Free memory was 52.9 MB in the beginning and 51.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. 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 7 terminating modules (6 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 59 and consists of 4 locations. 6 modules have a trivial ranking function, the largest among these consists of 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.1s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 7.1s. Construction of modules took 0.2s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 2. Automata minimization 29.7ms AutomataMinimizationTime, 6 MinimizatonAttempts, 22 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 68 SDtfs, 110 SDslu, 63 SDs, 0 SdLazy, 247 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 290.1ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN2 SILU1 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital244 mio100 ax107 hnf100 lsp88 ukn49 mio100 lsp27 div100 bol100 ite100 ukn100 eq151 hnf95 smp100 dnf168 smp92 tf100 neg94 sie136 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 58ms 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 20:21:20,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-10-21 20:21:21,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2021-10-21 20:21:21,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e5c5b2e-b3bd-4e69-8c41-7c33194fa5c4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...