./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strcspn.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strcspn.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3537cd0bed922b783c5bc2cf1d153661eb68e22062217013fbb7937014c3d604 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:17:21,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:17:21,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:17:21,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:17:21,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:17:21,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:17:21,503 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:17:21,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:17:21,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:17:21,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:17:21,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:17:21,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:17:21,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:17:21,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:17:21,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:17:21,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:17:21,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:17:21,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:17:21,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:17:21,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:17:21,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:17:21,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:17:21,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:17:21,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:17:21,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:17:21,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:17:21,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:17:21,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:17:21,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:17:21,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:17:21,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:17:21,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:17:21,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:17:21,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:17:21,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:17:21,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:17:21,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:17:21,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:17:21,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:17:21,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:17:21,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:17:21,549 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-18 20:17:21,587 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:17:21,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:17:21,588 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:17:21,588 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:17:21,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:17:21,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:17:21,590 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:17:21,590 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 20:17:21,590 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 20:17:21,590 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 20:17:21,591 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 20:17:21,592 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 20:17:21,592 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 20:17:21,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:17:21,592 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:17:21,592 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:17:21,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:17:21,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 20:17:21,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 20:17:21,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 20:17:21,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:17:21,593 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 20:17:21,594 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:17:21,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 20:17:21,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:17:21,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:17:21,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:17:21,595 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:17:21,596 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 20:17:21,596 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_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3537cd0bed922b783c5bc2cf1d153661eb68e22062217013fbb7937014c3d604 [2022-11-18 20:17:21,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:17:21,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:17:21,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:17:21,903 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:17:21,904 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:17:21,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-dietlibc/strcspn.i [2022-11-18 20:17:21,986 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/data/306dea717/5e6a16049dd745e5aff9e7d3f08ca141/FLAG3be1ed52f [2022-11-18 20:17:22,564 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:17:22,565 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/sv-benchmarks/c/termination-dietlibc/strcspn.i [2022-11-18 20:17:22,576 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/data/306dea717/5e6a16049dd745e5aff9e7d3f08ca141/FLAG3be1ed52f [2022-11-18 20:17:22,856 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/data/306dea717/5e6a16049dd745e5aff9e7d3f08ca141 [2022-11-18 20:17:22,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:17:22,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:17:22,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:17:22,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:17:22,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:17:22,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:17:22" (1/1) ... [2022-11-18 20:17:22,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d3e903b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:22, skipping insertion in model container [2022-11-18 20:17:22,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:17:22" (1/1) ... [2022-11-18 20:17:22,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:17:22,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:17:23,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:17:23,290 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:17:23,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:17:23,347 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:17:23,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:23 WrapperNode [2022-11-18 20:17:23,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:17:23,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:17:23,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:17:23,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:17:23,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:23" (1/1) ... [2022-11-18 20:17:23,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:23" (1/1) ... [2022-11-18 20:17:23,398 INFO L138 Inliner]: procedures = 113, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-11-18 20:17:23,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:17:23,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:17:23,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:17:23,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:17:23,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:23" (1/1) ... [2022-11-18 20:17:23,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:23" (1/1) ... [2022-11-18 20:17:23,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:23" (1/1) ... [2022-11-18 20:17:23,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:23" (1/1) ... [2022-11-18 20:17:23,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:23" (1/1) ... [2022-11-18 20:17:23,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:23" (1/1) ... [2022-11-18 20:17:23,448 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:23" (1/1) ... [2022-11-18 20:17:23,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:23" (1/1) ... [2022-11-18 20:17:23,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:17:23,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:17:23,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:17:23,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:17:23,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:23" (1/1) ... [2022-11-18 20:17:23,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:23,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:23,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:23,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 20:17:23,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:17:23,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:17:23,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:17:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:17:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:17:23,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:17:23,664 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:17:23,666 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:17:23,851 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:17:23,856 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:17:23,857 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:17:23,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:17:23 BoogieIcfgContainer [2022-11-18 20:17:23,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:17:23,860 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 20:17:23,860 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 20:17:23,872 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 20:17:23,873 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:17:23,873 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:17:22" (1/3) ... [2022-11-18 20:17:23,874 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c9d7a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:17:23, skipping insertion in model container [2022-11-18 20:17:23,874 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:17:23,874 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:23" (2/3) ... [2022-11-18 20:17:23,875 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c9d7a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:17:23, skipping insertion in model container [2022-11-18 20:17:23,875 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:17:23,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:17:23" (3/3) ... [2022-11-18 20:17:23,877 INFO L332 chiAutomizerObserver]: Analyzing ICFG strcspn.i [2022-11-18 20:17:23,947 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 20:17:23,947 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 20:17:23,947 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 20:17:23,947 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 20:17:23,947 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 20:17:23,948 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 20:17:23,948 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 20:17:23,948 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 20:17:23,954 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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) [2022-11-18 20:17:23,978 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-18 20:17:23,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:17:23,979 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:17:23,985 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 20:17:23,985 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-18 20:17:23,985 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 20:17:23,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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) [2022-11-18 20:17:23,988 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-18 20:17:23,988 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:17:23,989 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:17:23,989 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 20:17:23,989 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-18 20:17:23,997 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 17#L519true assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 10#L523true assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1 % 18446744073709551616);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 6#L510-4true [2022-11-18 20:17:23,998 INFO L750 eck$LassoCheckResult]: Loop: 6#L510-4true call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 12#L510-1true assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 9#L511-4true assume !true; 14#L511-5true strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 11#L510-3true strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 6#L510-4true [2022-11-18 20:17:24,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:24,006 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-11-18 20:17:24,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:24,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643254536] [2022-11-18 20:17:24,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:24,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:24,206 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:24,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:24,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:24,274 INFO L85 PathProgramCache]: Analyzing trace with hash 44069891, now seen corresponding path program 1 times [2022-11-18 20:17:24,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:24,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121005688] [2022-11-18 20:17:24,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:24,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:24,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:24,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:17:24,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121005688] [2022-11-18 20:17:24,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121005688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:17:24,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:17:24,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:17:24,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259332959] [2022-11-18 20:17:24,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:17:24,344 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 20:17:24,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:17:24,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:17:24,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:17:24,379 INFO L87 Difference]: Start difference. First operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:17:24,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:17:24,385 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2022-11-18 20:17:24,387 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2022-11-18 20:17:24,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-18 20:17:24,391 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 12 states and 13 transitions. [2022-11-18 20:17:24,393 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-18 20:17:24,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-11-18 20:17:24,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2022-11-18 20:17:24,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:17:24,394 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-18 20:17:24,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2022-11-18 20:17:24,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-18 20:17:24,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:17:24,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-11-18 20:17:24,422 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-18 20:17:24,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:17:24,426 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-18 20:17:24,427 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 20:17:24,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2022-11-18 20:17:24,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-18 20:17:24,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:17:24,428 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:17:24,428 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 20:17:24,428 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:17:24,429 INFO L748 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 45#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 52#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 48#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1 % 18446744073709551616);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 47#L510-4 [2022-11-18 20:17:24,429 INFO L750 eck$LassoCheckResult]: Loop: 47#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 49#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 42#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 43#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 53#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 46#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 47#L510-4 [2022-11-18 20:17:24,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:24,430 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2022-11-18 20:17:24,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:24,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416306027] [2022-11-18 20:17:24,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:24,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:24,457 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:24,478 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:24,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:24,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1365737035, now seen corresponding path program 1 times [2022-11-18 20:17:24,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:24,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235506336] [2022-11-18 20:17:24,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:24,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:24,490 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:24,499 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:24,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:24,500 INFO L85 PathProgramCache]: Analyzing trace with hash 736220402, now seen corresponding path program 1 times [2022-11-18 20:17:24,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:24,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424988030] [2022-11-18 20:17:24,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:24,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:24,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:24,628 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:25,736 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:17:25,737 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:17:25,737 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:17:25,737 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:17:25,737 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:17:25,738 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:25,738 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:17:25,738 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:17:25,738 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration2_Lasso [2022-11-18 20:17:25,738 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:17:25,738 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:17:25,765 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:26,630 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:26,633 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:26,636 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:26,639 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:26,642 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:26,646 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:26,649 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:26,652 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:26,656 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:26,659 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:26,662 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:26,665 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:26,669 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:26,672 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:26,675 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:26,678 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:27,354 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:17:27,359 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:17:27,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:27,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:27,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:27,378 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 [2022-11-18 20:17:27,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:27,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:27,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:27,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:27,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 20:17:27,401 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:27,402 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:27,417 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:27,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:27,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:27,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:27,431 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:27,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:17:27,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 20:17:27,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:27,456 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:17:27,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:27,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:27,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:27,458 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:17:27,458 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:17:27,482 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:27,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:27,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:27,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:27,499 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:27,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:17:27,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 20:17:27,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:27,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:27,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:27,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:27,524 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:27,524 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:27,542 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:27,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:27,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:27,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:27,556 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:27,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 20:17:27,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:17:27,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:27,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:27,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:27,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:27,578 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:27,579 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:27,591 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:27,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:27,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:27,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:27,601 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:27,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 20:17:27,609 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 [2022-11-18 20:17:27,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:27,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:17:27,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:27,621 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-18 20:17:27,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:27,623 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-18 20:17:27,623 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:17:27,646 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:27,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:27,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:27,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:27,653 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:27,669 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 [2022-11-18 20:17:27,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:27,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:27,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:27,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:27,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 20:17:27,703 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:27,703 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:27,720 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:27,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:27,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:27,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:27,731 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:27,740 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 [2022-11-18 20:17:27,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:27,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:27,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:27,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:27,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 20:17:27,762 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:27,763 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:27,782 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:27,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:27,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:27,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:27,794 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:27,804 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:17:27,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:27,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:27,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:27,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:27,819 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:27,819 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:27,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 20:17:27,834 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:27,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:27,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:27,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:27,845 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:27,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 20:17:27,853 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 [2022-11-18 20:17:27,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:27,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:27,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:27,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:27,877 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:27,877 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:27,898 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:17:27,935 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2022-11-18 20:17:27,935 INFO L444 ModelExtractionUtils]: 14 out of 28 variables were initially zero. Simplification set additionally 11 variables to zero. [2022-11-18 20:17:27,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:27,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:27,950 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:27,987 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:17:27,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 20:17:28,012 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-18 20:17:28,012 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:17:28,013 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~in~0#1.base)_1, ULTIMATE.start_strcspn_~s#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_~in~0#1.base)_1 - 1*ULTIMATE.start_strcspn_~s#1.offset Supporting invariants [] [2022-11-18 20:17:28,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:28,108 INFO L156 tatePredicateManager]: 18 out of 19 supporting invariants were superfluous and have been removed [2022-11-18 20:17:28,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:28,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:28,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:17:28,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:28,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:17:28,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:28,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:28,300 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:17:28,301 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-18 20:17:28,359 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 20 states and 23 transitions. Complement of second has 4 states. [2022-11-18 20:17:28,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 20:17:28,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-18 20:17:28,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2022-11-18 20:17:28,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-18 20:17:28,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:17:28,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 10 letters. Loop has 6 letters. [2022-11-18 20:17:28,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:17:28,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 4 letters. Loop has 12 letters. [2022-11-18 20:17:28,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:17:28,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2022-11-18 20:17:28,366 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-18 20:17:28,367 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 21 transitions. [2022-11-18 20:17:28,367 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-18 20:17:28,367 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-18 20:17:28,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2022-11-18 20:17:28,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:17:28,368 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-11-18 20:17:28,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2022-11-18 20:17:28,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-18 20:17:28,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 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) [2022-11-18 20:17:28,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-11-18 20:17:28,370 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-11-18 20:17:28,371 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-11-18 20:17:28,371 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 20:17:28,371 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2022-11-18 20:17:28,372 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-18 20:17:28,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:17:28,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:17:28,372 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:17:28,372 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:17:28,373 INFO L748 eck$LassoCheckResult]: Stem: 208#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 209#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 220#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 212#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1 % 18446744073709551616);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 213#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 214#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 204#L511-4 [2022-11-18 20:17:28,373 INFO L750 eck$LassoCheckResult]: Loop: 204#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 205#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 216#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 217#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 204#L511-4 [2022-11-18 20:17:28,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:28,374 INFO L85 PathProgramCache]: Analyzing trace with hash 889571309, now seen corresponding path program 1 times [2022-11-18 20:17:28,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:28,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585617843] [2022-11-18 20:17:28,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:28,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:28,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:28,414 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:28,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:28,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 1 times [2022-11-18 20:17:28,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:28,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660780806] [2022-11-18 20:17:28,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:28,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:28,435 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:28,441 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:28,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:28,441 INFO L85 PathProgramCache]: Analyzing trace with hash 736222132, now seen corresponding path program 1 times [2022-11-18 20:17:28,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:28,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799542965] [2022-11-18 20:17:28,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:28,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:28,485 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:28,526 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:28,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:29,453 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:17:29,453 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:17:29,453 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:17:29,453 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:17:29,453 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:17:29,453 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:29,454 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:17:29,454 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:17:29,454 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration3_Lasso [2022-11-18 20:17:29,454 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:17:29,454 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:17:29,457 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:29,464 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:30,149 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:30,152 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:30,154 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:30,157 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:30,160 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:30,162 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:30,173 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:30,176 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:30,178 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:30,182 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:30,184 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:30,187 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:30,189 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:30,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:30,195 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:30,198 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:30,919 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:17:30,919 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:17:30,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:30,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:30,923 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:30,936 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 [2022-11-18 20:17:30,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:30,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:17:30,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:30,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:30,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:30,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:17:30,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:17:30,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 20:17:30,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:30,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:30,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:30,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:30,966 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:30,974 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 [2022-11-18 20:17:30,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:30,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:30,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:30,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:30,989 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:30,989 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:30,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 20:17:31,006 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:31,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:31,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:31,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:31,016 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:31,020 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 [2022-11-18 20:17:31,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:31,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:31,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:31,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:31,035 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:31,035 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:31,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 20:17:31,046 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:31,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:31,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:31,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:31,056 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:31,064 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 [2022-11-18 20:17:31,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:31,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:31,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:31,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:31,080 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:31,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:31,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 20:17:31,098 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:31,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:31,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:31,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:31,109 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:31,113 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 [2022-11-18 20:17:31,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:31,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:31,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:31,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:31,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 20:17:31,129 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:31,129 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:31,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:31,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:31,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:31,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:31,151 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:31,161 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 [2022-11-18 20:17:31,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:31,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:31,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:31,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:31,175 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:31,175 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:31,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 20:17:31,194 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:31,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:31,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:31,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:31,204 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:31,209 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 [2022-11-18 20:17:31,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:31,222 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2022-11-18 20:17:31,222 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2022-11-18 20:17:31,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:31,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-18 20:17:31,238 INFO L401 nArgumentSynthesizer]: We have 56 Motzkin's Theorem applications. [2022-11-18 20:17:31,239 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2022-11-18 20:17:31,286 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:31,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:31,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:31,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:31,297 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:31,307 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 [2022-11-18 20:17:31,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:31,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:31,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:31,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:31,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-18 20:17:31,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:31,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:31,344 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:31,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:31,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:31,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:31,354 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:31,362 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 [2022-11-18 20:17:31,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:31,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:31,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:31,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:31,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-18 20:17:31,390 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:31,390 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:31,423 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:17:31,545 INFO L443 ModelExtractionUtils]: Simplification made 32 calls to the SMT solver. [2022-11-18 20:17:31,545 INFO L444 ModelExtractionUtils]: 8 out of 52 variables were initially zero. Simplification set additionally 40 variables to zero. [2022-11-18 20:17:31,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:31,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:31,546 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:31,550 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:17:31,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-18 20:17:31,572 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-18 20:17:31,572 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:17:31,572 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_2, ULTIMATE.start_strcspn_~i~0#1, ULTIMATE.start_strcspn_~reject#1.offset) = 1*v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_2 - 1*ULTIMATE.start_strcspn_~i~0#1 - 1*ULTIMATE.start_strcspn_~reject#1.offset Supporting invariants [] [2022-11-18 20:17:31,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:31,663 INFO L156 tatePredicateManager]: 20 out of 20 supporting invariants were superfluous and have been removed [2022-11-18 20:17:31,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:31,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:17:31,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:31,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:17:31,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:31,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:31,766 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:17:31,766 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-18 20:17:31,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:31,806 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 45 states and 51 transitions. Complement of second has 5 states. [2022-11-18 20:17:31,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 20:17:31,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-18 20:17:31,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2022-11-18 20:17:31,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 6 letters. Loop has 4 letters. [2022-11-18 20:17:31,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:17:31,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 10 letters. Loop has 4 letters. [2022-11-18 20:17:31,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:17:31,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 6 letters. Loop has 8 letters. [2022-11-18 20:17:31,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:17:31,810 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 51 transitions. [2022-11-18 20:17:31,812 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-18 20:17:31,812 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 29 states and 33 transitions. [2022-11-18 20:17:31,812 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-18 20:17:31,813 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-18 20:17:31,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 33 transitions. [2022-11-18 20:17:31,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:17:31,813 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 33 transitions. [2022-11-18 20:17:31,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 33 transitions. [2022-11-18 20:17:31,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2022-11-18 20:17:31,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.125) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:17:31,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-11-18 20:17:31,817 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-11-18 20:17:31,817 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-11-18 20:17:31,817 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 20:17:31,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 27 transitions. [2022-11-18 20:17:31,818 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-18 20:17:31,818 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:17:31,818 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:17:31,819 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:17:31,819 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:17:31,819 INFO L748 eck$LassoCheckResult]: Stem: 401#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 402#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 414#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 405#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1 % 18446744073709551616);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 406#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 408#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 409#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 417#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 415#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 403#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 404#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 407#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 397#L511-4 [2022-11-18 20:17:31,820 INFO L750 eck$LassoCheckResult]: Loop: 397#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 398#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 410#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 411#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 397#L511-4 [2022-11-18 20:17:31,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:31,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1161797001, now seen corresponding path program 2 times [2022-11-18 20:17:31,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:31,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057505376] [2022-11-18 20:17:31,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:31,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:31,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:31,862 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:31,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:31,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 2 times [2022-11-18 20:17:31,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:31,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099210450] [2022-11-18 20:17:31,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:31,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:31,869 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:31,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:31,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:31,875 INFO L85 PathProgramCache]: Analyzing trace with hash -967302850, now seen corresponding path program 1 times [2022-11-18 20:17:31,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:31,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734775155] [2022-11-18 20:17:31,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:31,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:32,273 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:32,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:17:32,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734775155] [2022-11-18 20:17:32,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734775155] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:17:32,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533222482] [2022-11-18 20:17:32,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:32,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:17:32,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:32,281 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:17:32,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-18 20:17:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:32,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-18 20:17:32,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:32,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 20:17:32,457 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:32,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:17:32,511 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-18 20:17:32,512 INFO L350 Elim1Store]: Elim1 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 18 treesize of output 11 [2022-11-18 20:17:32,519 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:32,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533222482] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:17:32,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:17:32,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 15 [2022-11-18 20:17:32,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412459378] [2022-11-18 20:17:32,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:17:32,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:17:32,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 20:17:32,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:17:32,591 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. cyclomatic complexity: 6 Second operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:17:32,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:17:32,684 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2022-11-18 20:17:32,685 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 51 transitions. [2022-11-18 20:17:32,686 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-18 20:17:32,686 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 36 states and 39 transitions. [2022-11-18 20:17:32,687 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-18 20:17:32,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-11-18 20:17:32,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 39 transitions. [2022-11-18 20:17:32,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:17:32,687 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 39 transitions. [2022-11-18 20:17:32,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 39 transitions. [2022-11-18 20:17:32,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2022-11-18 20:17:32,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 26 states have internal predecessors, (30), 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) [2022-11-18 20:17:32,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-11-18 20:17:32,690 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-11-18 20:17:32,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:17:32,691 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-11-18 20:17:32,692 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 20:17:32,692 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 30 transitions. [2022-11-18 20:17:32,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-18 20:17:32,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:17:32,693 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:17:32,693 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:17:32,693 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:17:32,694 INFO L748 eck$LassoCheckResult]: Stem: 581#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 582#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 598#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 587#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1 % 18446744073709551616);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 588#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 599#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 585#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 586#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 596#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 597#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 601#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 602#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 600#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 589#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 590#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 591#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 583#L511-4 [2022-11-18 20:17:32,694 INFO L750 eck$LassoCheckResult]: Loop: 583#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 584#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 594#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 595#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 583#L511-4 [2022-11-18 20:17:32,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:32,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1375356158, now seen corresponding path program 2 times [2022-11-18 20:17:32,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:32,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38633423] [2022-11-18 20:17:32,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:32,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:32,710 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:32,725 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:32,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:32,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 3 times [2022-11-18 20:17:32,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:32,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172414232] [2022-11-18 20:17:32,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:32,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:32,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:32,730 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:32,734 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:32,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:32,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1858115515, now seen corresponding path program 3 times [2022-11-18 20:17:32,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:32,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080740592] [2022-11-18 20:17:32,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:32,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:32,750 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:32,765 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:34,178 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:17:34,178 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:17:34,178 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:17:34,178 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:17:34,178 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:17:34,179 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:34,179 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:17:34,179 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:17:34,179 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration5_Lasso [2022-11-18 20:17:34,179 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:17:34,179 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:17:34,183 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:34,187 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:34,190 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:34,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:34,196 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:34,198 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:34,201 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:34,204 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:34,206 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:34,209 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:34,212 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:34,214 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:34,216 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:35,147 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:35,153 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:35,156 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:35,159 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:35,162 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:36,127 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:17:36,127 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:17:36,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:36,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:36,133 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:36,139 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 [2022-11-18 20:17:36,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:36,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:36,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:36,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:36,153 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:36,153 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:36,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-18 20:17:36,163 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:36,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-11-18 20:17:36,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:36,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:36,167 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:36,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-18 20:17:36,171 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 [2022-11-18 20:17:36,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:36,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:17:36,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:36,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:36,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:36,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:17:36,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:17:36,183 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:36,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:36,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:36,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:36,188 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:36,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-18 20:17:36,191 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 [2022-11-18 20:17:36,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:36,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:17:36,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:36,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:36,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:36,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:17:36,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:17:36,209 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:36,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:36,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:36,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:36,217 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:36,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-18 20:17:36,219 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 [2022-11-18 20:17:36,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:36,229 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:17:36,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:36,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:36,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:36,230 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:17:36,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:17:36,231 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:36,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:36,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:36,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:36,235 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:36,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-18 20:17:36,244 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 [2022-11-18 20:17:36,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:36,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:17:36,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:36,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:36,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:36,255 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:17:36,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:17:36,256 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:36,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-11-18 20:17:36,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:36,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:36,259 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:36,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-18 20:17:36,263 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 [2022-11-18 20:17:36,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:36,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:17:36,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:36,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:36,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:36,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:17:36,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:17:36,275 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:36,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-11-18 20:17:36,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:36,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:36,278 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:36,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-18 20:17:36,281 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 [2022-11-18 20:17:36,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:36,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:36,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:36,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:36,292 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:36,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:36,296 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:36,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-11-18 20:17:36,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:36,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:36,300 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:36,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-18 20:17:36,302 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 [2022-11-18 20:17:36,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:36,312 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:17:36,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:36,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:36,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:36,313 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:17:36,313 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:17:36,314 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:36,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-11-18 20:17:36,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:36,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:36,318 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:36,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-18 20:17:36,320 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:17:36,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:36,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:36,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:36,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:36,332 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:36,332 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:36,335 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:36,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-11-18 20:17:36,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:36,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:36,340 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:36,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-18 20:17:36,341 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 [2022-11-18 20:17:36,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:36,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:36,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:36,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:36,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:36,353 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:36,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:36,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-11-18 20:17:36,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:36,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:36,360 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:36,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-18 20:17:36,363 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 [2022-11-18 20:17:36,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:36,373 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:17:36,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:36,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:36,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:36,373 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:17:36,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:17:36,378 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:36,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2022-11-18 20:17:36,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:36,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:36,382 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:36,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-18 20:17:36,385 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 [2022-11-18 20:17:36,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:36,395 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:17:36,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:36,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:36,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:36,396 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:17:36,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:17:36,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:36,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:36,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:36,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:36,403 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:36,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-18 20:17:36,404 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 [2022-11-18 20:17:36,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:36,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:36,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:36,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:36,416 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:36,416 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:36,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:36,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2022-11-18 20:17:36,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:36,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:36,426 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:36,435 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 [2022-11-18 20:17:36,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:36,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:36,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:36,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:36,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-18 20:17:36,451 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:36,451 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:36,457 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:36,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2022-11-18 20:17:36,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:36,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:36,461 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:36,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-18 20:17:36,463 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 [2022-11-18 20:17:36,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:36,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:36,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:36,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:36,481 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:36,482 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:36,506 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:36,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:36,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:36,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:36,513 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:36,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-18 20:17:36,521 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:17:36,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:36,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:36,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:36,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:36,551 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:36,560 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:36,602 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:17:36,730 INFO L443 ModelExtractionUtils]: Simplification made 38 calls to the SMT solver. [2022-11-18 20:17:36,731 INFO L444 ModelExtractionUtils]: 8 out of 52 variables were initially zero. Simplification set additionally 39 variables to zero. [2022-11-18 20:17:36,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:36,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:36,737 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:36,740 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:17:36,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-18 20:17:36,751 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-11-18 20:17:36,751 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:17:36,751 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc10#1.base)_3, ULTIMATE.start_strcspn_~i~0#1) = 36893488147419103231*v_rep(select #length ULTIMATE.start_main_#t~malloc10#1.base)_3 - 2*ULTIMATE.start_strcspn_~i~0#1 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_3 + 18446744073709551615*v_rep(select #length ULTIMATE.start_main_#t~malloc10#1.base)_3 >= 0] [2022-11-18 20:17:36,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2022-11-18 20:17:36,941 INFO L156 tatePredicateManager]: 28 out of 30 supporting invariants were superfluous and have been removed [2022-11-18 20:17:36,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:37,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-18 20:17:37,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:37,085 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-18 20:17:37,085 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 20:17:37,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-18 20:17:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:37,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:17:37,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:37,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:37,441 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 3 loop predicates [2022-11-18 20:17:37,441 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) [2022-11-18 20:17:37,511 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) Result 27 states and 30 transitions. Complement of second has 5 states. [2022-11-18 20:17:37,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2022-11-18 20:17:37,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) [2022-11-18 20:17:37,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-11-18 20:17:37,514 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-18 20:17:37,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:17:37,514 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 20:17:37,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:37,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-18 20:17:37,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:37,694 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:17:37,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 12 treesize of output 18 [2022-11-18 20:17:37,732 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-18 20:17:37,733 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 20:17:37,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:37,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:17:37,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:38,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:38,104 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 3 loop predicates [2022-11-18 20:17:38,104 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) [2022-11-18 20:17:38,184 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) Result 27 states and 30 transitions. Complement of second has 5 states. [2022-11-18 20:17:38,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2022-11-18 20:17:38,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) [2022-11-18 20:17:38,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-11-18 20:17:38,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-18 20:17:38,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:17:38,188 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 20:17:38,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:38,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-18 20:17:38,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:38,326 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:17:38,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 12 treesize of output 18 [2022-11-18 20:17:38,354 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-18 20:17:38,354 INFO L350 Elim1Store]: Elim1 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 [2022-11-18 20:17:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:38,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:17:38,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:38,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:38,720 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.4 stem predicates 3 loop predicates [2022-11-18 20:17:38,721 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) [2022-11-18 20:17:38,929 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) Result 56 states and 63 transitions. Complement of second has 11 states. [2022-11-18 20:17:38,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 2 non-accepting loop states 2 accepting loop states [2022-11-18 20:17:38,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) [2022-11-18 20:17:38,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 40 transitions. [2022-11-18 20:17:38,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-18 20:17:38,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:17:38,931 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 20 letters. Loop has 4 letters. [2022-11-18 20:17:38,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:17:38,931 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 16 letters. Loop has 8 letters. [2022-11-18 20:17:38,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:17:38,931 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 63 transitions. [2022-11-18 20:17:38,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-18 20:17:38,933 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 42 states and 46 transitions. [2022-11-18 20:17:38,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-18 20:17:38,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-11-18 20:17:38,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 46 transitions. [2022-11-18 20:17:38,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:17:38,934 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-11-18 20:17:38,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 46 transitions. [2022-11-18 20:17:38,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2022-11-18 20:17:38,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 36 states have internal predecessors, (41), 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) [2022-11-18 20:17:38,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-11-18 20:17:38,937 INFO L240 hiAutomatonCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-11-18 20:17:38,937 INFO L428 stractBuchiCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-11-18 20:17:38,937 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-18 20:17:38,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 41 transitions. [2022-11-18 20:17:38,938 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-18 20:17:38,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:17:38,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:17:38,938 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-18 20:17:38,939 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:17:38,939 INFO L748 eck$LassoCheckResult]: Stem: 1092#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1093#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 1104#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 1096#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1 % 18446744073709551616);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 1097#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1106#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1118#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1116#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1115#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1107#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1108#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1117#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1105#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1094#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1095#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1099#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1090#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1091#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1102#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1103#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1114#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1113#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1112#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1111#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1109#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1098#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1088#L511-4 [2022-11-18 20:17:38,939 INFO L750 eck$LassoCheckResult]: Loop: 1088#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1089#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1100#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1101#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1088#L511-4 [2022-11-18 20:17:38,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:38,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1550213327, now seen corresponding path program 4 times [2022-11-18 20:17:38,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:38,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763964042] [2022-11-18 20:17:38,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:38,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:38,968 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:38,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:38,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:38,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 4 times [2022-11-18 20:17:38,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:38,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411617705] [2022-11-18 20:17:38,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:38,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:38,989 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:38,993 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:38,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:38,993 INFO L85 PathProgramCache]: Analyzing trace with hash 229061526, now seen corresponding path program 5 times [2022-11-18 20:17:38,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:38,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608299625] [2022-11-18 20:17:38,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:38,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:39,018 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:39,044 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:40,898 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:17:40,898 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:17:40,898 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:17:40,898 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:17:40,899 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:17:40,899 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:40,899 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:17:40,899 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:17:40,899 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration6_Lasso [2022-11-18 20:17:40,899 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:17:40,899 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:17:40,902 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:40,912 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:40,915 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:41,937 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:41,939 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:41,941 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:41,943 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:41,945 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:41,947 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:41,948 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:41,951 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:41,957 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:41,960 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:41,962 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:41,964 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:41,966 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:41,968 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:41,973 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:42,445 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-11-18 20:17:44,198 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:17:44,198 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:17:44,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:44,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:44,211 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:44,220 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 [2022-11-18 20:17:44,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:44,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:17:44,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:44,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:44,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:44,233 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:17:44,233 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:17:44,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-18 20:17:44,247 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:44,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:44,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:44,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:44,256 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:44,263 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 [2022-11-18 20:17:44,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-18 20:17:44,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:44,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:44,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:44,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:44,275 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:44,275 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:44,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:44,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2022-11-18 20:17:44,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:44,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:44,282 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:44,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-11-18 20:17:44,287 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 [2022-11-18 20:17:44,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:44,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:44,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:44,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:44,300 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:44,300 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:44,306 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:44,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-11-18 20:17:44,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:44,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:44,309 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:44,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-11-18 20:17:44,313 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 [2022-11-18 20:17:44,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:44,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:44,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:44,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:44,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:44,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:44,328 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:44,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-11-18 20:17:44,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:44,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:44,332 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:44,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-11-18 20:17:44,334 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 [2022-11-18 20:17:44,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:44,344 INFO L203 nArgumentSynthesizer]: 36 stem disjuncts [2022-11-18 20:17:44,345 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2022-11-18 20:17:44,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:44,473 INFO L401 nArgumentSynthesizer]: We have 328 Motzkin's Theorem applications. [2022-11-18 20:17:44,474 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2022-11-18 20:17:44,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:17:44,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2022-11-18 20:17:44,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:44,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:44,740 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:44,752 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 [2022-11-18 20:17:44,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-11-18 20:17:44,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:17:44,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:17:44,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:17:44,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:17:44,776 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:17:44,776 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:17:44,810 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:17:44,991 INFO L443 ModelExtractionUtils]: Simplification made 44 calls to the SMT solver. [2022-11-18 20:17:44,992 INFO L444 ModelExtractionUtils]: 9 out of 52 variables were initially zero. Simplification set additionally 40 variables to zero. [2022-11-18 20:17:44,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:44,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:44,993 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:45,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-11-18 20:17:45,011 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:17:45,022 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-18 20:17:45,022 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:17:45,022 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_4, ULTIMATE.start_strcspn_~i~0#1) = 5*v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_4 - 2*ULTIMATE.start_strcspn_~i~0#1 Supporting invariants [] [2022-11-18 20:17:45,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:45,193 INFO L156 tatePredicateManager]: 30 out of 31 supporting invariants were superfluous and have been removed [2022-11-18 20:17:45,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:45,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-18 20:17:45,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:45,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:17:45,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:45,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:45,544 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 3 loop predicates [2022-11-18 20:17:45,544 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8 Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 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) [2022-11-18 20:17:45,592 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 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) Result 37 states and 41 transitions. Complement of second has 5 states. [2022-11-18 20:17:45,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2022-11-18 20:17:45,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 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) [2022-11-18 20:17:45,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-11-18 20:17:45,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 26 letters. Loop has 4 letters. [2022-11-18 20:17:45,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:17:45,595 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 20:17:45,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:45,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-18 20:17:45,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:45,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:17:45,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:45,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:45,922 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.5 stem predicates 3 loop predicates [2022-11-18 20:17:45,922 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8 Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 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) [2022-11-18 20:17:45,968 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 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) Result 37 states and 41 transitions. Complement of second has 5 states. [2022-11-18 20:17:45,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2022-11-18 20:17:45,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 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) [2022-11-18 20:17:45,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-11-18 20:17:45,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 26 letters. Loop has 4 letters. [2022-11-18 20:17:45,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:17:45,971 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 20:17:45,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:46,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-18 20:17:46,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:46,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-11-18 20:17:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:46,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:17:46,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:46,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:46,314 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.5 stem predicates 3 loop predicates [2022-11-18 20:17:46,314 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8 Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 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) [2022-11-18 20:17:46,471 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 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) Result 66 states and 74 transitions. Complement of second has 13 states. [2022-11-18 20:17:46,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 5 stem states 2 non-accepting loop states 2 accepting loop states [2022-11-18 20:17:46,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 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) [2022-11-18 20:17:46,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 50 transitions. [2022-11-18 20:17:46,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 50 transitions. Stem has 26 letters. Loop has 4 letters. [2022-11-18 20:17:46,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:17:46,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 50 transitions. Stem has 30 letters. Loop has 4 letters. [2022-11-18 20:17:46,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:17:46,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 50 transitions. Stem has 26 letters. Loop has 8 letters. [2022-11-18 20:17:46,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:17:46,474 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 74 transitions. [2022-11-18 20:17:46,475 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-18 20:17:46,475 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 52 states and 57 transitions. [2022-11-18 20:17:46,475 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-18 20:17:46,476 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-11-18 20:17:46,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 57 transitions. [2022-11-18 20:17:46,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:17:46,476 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 57 transitions. [2022-11-18 20:17:46,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 57 transitions. [2022-11-18 20:17:46,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2022-11-18 20:17:46,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 46 states have internal predecessors, (52), 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) [2022-11-18 20:17:46,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-11-18 20:17:46,479 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-11-18 20:17:46,479 INFO L428 stractBuchiCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-11-18 20:17:46,479 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-18 20:17:46,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 52 transitions. [2022-11-18 20:17:46,480 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-18 20:17:46,480 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:17:46,480 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:17:46,481 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2022-11-18 20:17:46,481 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:17:46,481 INFO L748 eck$LassoCheckResult]: Stem: 1740#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1741#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 1752#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 1744#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1 % 18446744073709551616);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 1745#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1747#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1738#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1739#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1756#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1781#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1780#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1779#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1778#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1777#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1754#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1755#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1782#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1770#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1750#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1751#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1757#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1767#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1753#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1742#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1743#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1776#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1775#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1771#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1772#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1765#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1766#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1762#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1761#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1760#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1758#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1746#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1736#L511-4 [2022-11-18 20:17:46,481 INFO L750 eck$LassoCheckResult]: Loop: 1736#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1737#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1748#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1749#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1736#L511-4 [2022-11-18 20:17:46,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:46,482 INFO L85 PathProgramCache]: Analyzing trace with hash -43865248, now seen corresponding path program 6 times [2022-11-18 20:17:46,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:46,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565931750] [2022-11-18 20:17:46,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:46,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:46,512 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:46,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:46,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:46,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 5 times [2022-11-18 20:17:46,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:46,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614170978] [2022-11-18 20:17:46,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:46,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:46,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:46,558 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:46,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:46,560 INFO L85 PathProgramCache]: Analyzing trace with hash -345387609, now seen corresponding path program 7 times [2022-11-18 20:17:46,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:46,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489283579] [2022-11-18 20:17:46,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:46,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:46,582 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:17:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:17:46,610 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:17:48,733 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:17:48,733 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:17:48,733 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:17:48,733 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:17:48,733 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:17:48,733 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:17:48,733 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:17:48,734 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:17:48,734 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration7_Lasso [2022-11-18 20:17:48,734 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:17:48,734 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:17:48,737 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:48,739 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:48,743 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:48,746 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:48,748 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:48,750 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:48,752 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:48,753 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:49,811 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:49,813 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:49,815 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:49,817 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:49,819 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:49,821 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:49,823 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:49,827 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:49,829 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:17:50,303 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2022-11-18 20:18:01,107 WARN L233 SmtUtils]: Spent 10.74s on a formula simplification. DAG size of input: 298 DAG size of output: 150 (called from [L 68] de.uni_freiburg.informatik.ultimate.icfgtransformer.transformulatransformers.SimplifyPreprocessor.process) [2022-11-18 20:18:01,398 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:18:01,398 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:18:01,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:01,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:01,405 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:01,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-11-18 20:18:01,408 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 [2022-11-18 20:18:01,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:01,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:01,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:01,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:01,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:01,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:01,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:01,434 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:01,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:01,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:01,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:01,439 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:01,446 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 [2022-11-18 20:18:01,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:01,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:01,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:01,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:01,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:01,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:01,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:01,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-11-18 20:18:01,469 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:01,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2022-11-18 20:18:01,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:01,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:01,473 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:01,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-11-18 20:18:01,475 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 [2022-11-18 20:18:01,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:01,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:01,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:01,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:01,487 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:18:01,487 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:18:01,490 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:01,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2022-11-18 20:18:01,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:01,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:01,495 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:01,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-11-18 20:18:01,497 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 [2022-11-18 20:18:01,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:01,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:01,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:01,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:01,508 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:18:01,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:18:01,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:01,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2022-11-18 20:18:01,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:01,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:01,517 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:01,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-11-18 20:18:01,519 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 [2022-11-18 20:18:01,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:01,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:01,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:01,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:01,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:01,529 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:01,529 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:01,537 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:01,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:01,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:01,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:01,543 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:01,547 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 [2022-11-18 20:18:01,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-11-18 20:18:01,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:01,557 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:01,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:01,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:01,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:01,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:01,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:01,559 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:01,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:01,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:01,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:01,563 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:01,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-11-18 20:18:01,565 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 [2022-11-18 20:18:01,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:01,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:18:01,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:01,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:01,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:01,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:18:01,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:18:01,577 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:01,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:01,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:01,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:01,581 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:01,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-11-18 20:18:01,584 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 [2022-11-18 20:18:01,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:01,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:01,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:01,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:01,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:18:01,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:18:01,598 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:01,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2022-11-18 20:18:01,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:01,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:01,602 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:01,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-11-18 20:18:01,604 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 [2022-11-18 20:18:01,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:01,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:01,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:01,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:01,617 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:18:01,617 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:18:01,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:01,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2022-11-18 20:18:01,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:01,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:01,626 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:01,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-11-18 20:18:01,629 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 [2022-11-18 20:18:01,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:01,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:01,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:01,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:01,640 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:18:01,640 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:18:01,644 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:01,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:01,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:01,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:01,647 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:01,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-11-18 20:18:01,650 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 [2022-11-18 20:18:01,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:01,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:01,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:01,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:01,661 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:18:01,661 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:18:01,665 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:01,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2022-11-18 20:18:01,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:01,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:01,668 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:01,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-11-18 20:18:01,670 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 [2022-11-18 20:18:01,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:01,681 INFO L203 nArgumentSynthesizer]: 108 stem disjuncts [2022-11-18 20:18:01,681 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2022-11-18 20:18:01,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:02,079 INFO L401 nArgumentSynthesizer]: We have 904 Motzkin's Theorem applications. [2022-11-18 20:18:02,079 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2022-11-18 20:18:03,077 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:18:03,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2022-11-18 20:18:03,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:03,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:03,090 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:03,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-11-18 20:18:03,092 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 [2022-11-18 20:18:03,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:18:03,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:18:03,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:18:03,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:18:03,114 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:18:03,114 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:18:03,138 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:18:03,159 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-18 20:18:03,159 INFO L444 ModelExtractionUtils]: 39 out of 55 variables were initially zero. Simplification set additionally 12 variables to zero. [2022-11-18 20:18:03,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:18:03,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:18:03,161 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:18:03,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-11-18 20:18:03,163 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:18:03,174 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-11-18 20:18:03,174 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:18:03,174 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strcspn_~i~0#1, v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_5) = -1*ULTIMATE.start_strcspn_~i~0#1 + 1*v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_5 Supporting invariants [1*ULTIMATE.start_strcspn_~reject#1.offset >= 0] [2022-11-18 20:18:03,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:03,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:03,416 INFO L156 tatePredicateManager]: 41 out of 42 supporting invariants were superfluous and have been removed [2022-11-18 20:18:03,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:03,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:18:03,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:18:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:03,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:18:03,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:18:03,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:03,653 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2022-11-18 20:18:03,653 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:03,694 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 55 states and 61 transitions. Complement of second has 6 states. [2022-11-18 20:18:03,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 20:18:03,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:03,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-18 20:18:03,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 36 letters. Loop has 4 letters. [2022-11-18 20:18:03,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:18:03,698 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 20:18:03,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:03,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:18:03,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:18:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:03,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:18:03,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:18:03,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:03,930 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2022-11-18 20:18:03,931 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:03,970 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 55 states and 61 transitions. Complement of second has 6 states. [2022-11-18 20:18:03,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 20:18:03,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:03,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-18 20:18:03,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 36 letters. Loop has 4 letters. [2022-11-18 20:18:03,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:18:03,971 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 20:18:03,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:18:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:04,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:18:04,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:18:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:04,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:18:04,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:18:04,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:18:04,234 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2022-11-18 20:18:04,234 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:04,276 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 80 states and 91 transitions. Complement of second has 5 states. [2022-11-18 20:18:04,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 20:18:04,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:18:04,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-18 20:18:04,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 36 letters. Loop has 4 letters. [2022-11-18 20:18:04,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:18:04,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 40 letters. Loop has 4 letters. [2022-11-18 20:18:04,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:18:04,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 36 letters. Loop has 8 letters. [2022-11-18 20:18:04,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:18:04,282 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 91 transitions. [2022-11-18 20:18:04,288 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 20:18:04,289 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 0 states and 0 transitions. [2022-11-18 20:18:04,289 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 20:18:04,289 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 20:18:04,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 20:18:04,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:18:04,289 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:18:04,290 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:18:04,290 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:18:04,290 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-18 20:18:04,290 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:18:04,290 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 20:18:04,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-18 20:18:04,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:18:04 BoogieIcfgContainer [2022-11-18 20:18:04,297 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 20:18:04,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:18:04,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:18:04,298 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:18:04,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:17:23" (3/4) ... [2022-11-18 20:18:04,301 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:18:04,301 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:18:04,301 INFO L158 Benchmark]: Toolchain (without parser) took 41437.97ms. Allocated memory was 136.3MB in the beginning and 243.3MB in the end (delta: 107.0MB). Free memory was 98.2MB in the beginning and 125.8MB in the end (delta: -27.6MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. [2022-11-18 20:18:04,302 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 136.3MB. Free memory was 115.8MB in the beginning and 115.7MB in the end (delta: 72.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:18:04,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 482.48ms. Allocated memory is still 136.3MB. Free memory was 97.9MB in the beginning and 105.1MB in the end (delta: -7.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:18:04,303 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.47ms. Allocated memory is still 136.3MB. Free memory was 105.1MB in the beginning and 103.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:18:04,303 INFO L158 Benchmark]: Boogie Preprocessor took 51.28ms. Allocated memory is still 136.3MB. Free memory was 103.5MB in the beginning and 101.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:18:04,304 INFO L158 Benchmark]: RCFGBuilder took 407.08ms. Allocated memory is still 136.3MB. Free memory was 101.8MB in the beginning and 90.1MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:18:04,304 INFO L158 Benchmark]: BuchiAutomizer took 40437.31ms. Allocated memory was 136.3MB in the beginning and 243.3MB in the end (delta: 107.0MB). Free memory was 90.1MB in the beginning and 125.8MB in the end (delta: -35.7MB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. [2022-11-18 20:18:04,304 INFO L158 Benchmark]: Witness Printer took 3.62ms. Allocated memory is still 243.3MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:18:04,306 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 136.3MB. Free memory was 115.8MB in the beginning and 115.7MB in the end (delta: 72.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 482.48ms. Allocated memory is still 136.3MB. Free memory was 97.9MB in the beginning and 105.1MB in the end (delta: -7.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.47ms. Allocated memory is still 136.3MB. Free memory was 105.1MB in the beginning and 103.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.28ms. Allocated memory is still 136.3MB. Free memory was 103.5MB in the beginning and 101.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 407.08ms. Allocated memory is still 136.3MB. Free memory was 101.8MB in the beginning and 90.1MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 40437.31ms. Allocated memory was 136.3MB in the beginning and 243.3MB in the end (delta: 107.0MB). Free memory was 90.1MB in the beginning and 125.8MB in the end (delta: -35.7MB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. * Witness Printer took 3.62ms. Allocated memory is still 243.3MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (2 trivial, 2 deterministic, 3 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[in] + -1 * s and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[reject] + -1 * reject + -1 * i and consists of 3 locations. One nondeterministic module has affine ranking function -2 * i + 36893488147419103231 * unknown-#length-unknown[__builtin_alloca (in_len)] and consists of 8 locations. One nondeterministic module has affine ranking function 5 * unknown-#length-unknown[reject] + -2 * i and consists of 9 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[reject] + -1 * i and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 40.3s and 8 iterations. TraceHistogramMax:6. Analysis of lassos took 35.5s. Construction of modules took 0.2s. Büchi inclusion checks took 4.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 270 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 269 mSDsluCounter, 312 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 170 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 242 IncrementalHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 142 mSDtfsCounter, 242 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital277 mio100 ax100 hnf100 lsp95 ukn83 mio100 lsp47 div158 bol100 ite100 ukn100 eq163 hnf92 smp70 dnf1288 smp67 tf100 neg89 sie125 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 1409ms VariablesStem: 6 VariablesLoop: 2 DisjunctsStem: 108 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 904 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-18 20:18:04,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-18 20:18:04,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e930e9-e69a-44e5-a09a-73554fe7e95f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE