./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9bbd8ebbfdd1aa7b2aaa2f32f767526fd317d11dcf6b707f4c34423040b4383f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:03:03,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:03:03,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:03:03,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:03:03,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:03:03,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:03:03,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:03:03,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:03:03,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:03:03,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:03:03,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:03:03,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:03:03,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:03:03,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:03:03,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:03:03,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:03:03,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:03:03,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:03:03,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:03:03,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:03:03,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:03:03,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:03:03,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:03:03,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:03:03,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:03:03,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:03:03,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:03:03,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:03:03,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:03:03,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:03:03,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:03:03,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:03:03,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:03:03,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:03:03,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:03:03,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:03:03,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:03:03,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:03:03,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:03:03,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:03:03,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:03:03,239 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-20 07:03:03,267 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:03:03,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:03:03,269 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:03:03,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:03:03,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:03:03,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:03:03,272 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:03:03,272 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 07:03:03,272 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 07:03:03,273 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 07:03:03,274 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 07:03:03,274 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 07:03:03,274 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 07:03:03,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:03:03,275 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:03:03,275 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:03:03,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:03:03,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:03:03,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:03:03,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 07:03:03,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 07:03:03,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 07:03:03,277 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:03:03,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:03:03,278 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 07:03:03,278 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:03:03,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 07:03:03,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:03:03,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:03:03,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:03:03,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:03:03,280 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:03:03,282 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 07:03:03,282 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_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bbd8ebbfdd1aa7b2aaa2f32f767526fd317d11dcf6b707f4c34423040b4383f [2021-11-20 07:03:03,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:03:03,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:03:03,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:03:03,631 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:03:03,633 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:03:03,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c [2021-11-20 07:03:03,710 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/data/926aced24/e31f55e00f894001805ed54247b25887/FLAG5b5fa1f94 [2021-11-20 07:03:04,145 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:03:04,145 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c [2021-11-20 07:03:04,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/data/926aced24/e31f55e00f894001805ed54247b25887/FLAG5b5fa1f94 [2021-11-20 07:03:04,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/data/926aced24/e31f55e00f894001805ed54247b25887 [2021-11-20 07:03:04,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:03:04,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:03:04,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:03:04,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:03:04,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:03:04,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:03:04" (1/1) ... [2021-11-20 07:03:04,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53599cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:04, skipping insertion in model container [2021-11-20 07:03:04,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:03:04" (1/1) ... [2021-11-20 07:03:04,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:03:04,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:03:04,779 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c[14184,14197] [2021-11-20 07:03:04,780 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:03:04,794 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:03:04,841 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c[14184,14197] [2021-11-20 07:03:04,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:03:04,869 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:03:04,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:04 WrapperNode [2021-11-20 07:03:04,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:03:04,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:03:04,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:03:04,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:03:04,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:04" (1/1) ... [2021-11-20 07:03:04,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:04" (1/1) ... [2021-11-20 07:03:04,922 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 135 [2021-11-20 07:03:04,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:03:04,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:03:04,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:03:04,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:03:04,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:04" (1/1) ... [2021-11-20 07:03:04,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:04" (1/1) ... [2021-11-20 07:03:04,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:04" (1/1) ... [2021-11-20 07:03:04,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:04" (1/1) ... [2021-11-20 07:03:04,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:04" (1/1) ... [2021-11-20 07:03:04,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:04" (1/1) ... [2021-11-20 07:03:04,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:04" (1/1) ... [2021-11-20 07:03:04,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:03:04,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:03:04,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:03:04,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:03:04,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:04" (1/1) ... [2021-11-20 07:03:04,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:04,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:04,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:04,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 07:03:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:03:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:03:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:03:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:03:05,083 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:03:05,085 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:03:05,287 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:03:05,293 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:03:05,294 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 07:03:05,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:03:05 BoogieIcfgContainer [2021-11-20 07:03:05,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:03:05,297 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 07:03:05,297 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 07:03:05,301 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 07:03:05,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:03:05,302 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:03:04" (1/3) ... [2021-11-20 07:03:05,304 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69466125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:03:05, skipping insertion in model container [2021-11-20 07:03:05,304 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:03:05,304 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:04" (2/3) ... [2021-11-20 07:03:05,305 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69466125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:03:05, skipping insertion in model container [2021-11-20 07:03:05,305 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:03:05,305 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:03:05" (3/3) ... [2021-11-20 07:03:05,306 INFO L388 chiAutomizerObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2021-11-20 07:03:05,353 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 07:03:05,353 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 07:03:05,353 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 07:03:05,353 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 07:03:05,354 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 07:03:05,354 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 07:03:05,354 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 07:03:05,354 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 07:03:05,371 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 45 states, 44 states have (on average 1.6818181818181819) internal successors, (74), 44 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:05,394 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2021-11-20 07:03:05,395 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:05,395 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:05,403 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 07:03:05,403 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-20 07:03:05,404 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 07:03:05,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 45 states, 44 states have (on average 1.6818181818181819) internal successors, (74), 44 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:05,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2021-11-20 07:03:05,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:05,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:05,413 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 07:03:05,413 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-20 07:03:05,425 INFO L791 eck$LassoCheckResult]: Stem: 25#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 19#L188true [2021-11-20 07:03:05,426 INFO L793 eck$LassoCheckResult]: Loop: 19#L188true assume !false; 21#L35true assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 34#L41true assume 8466 == main_~s__state~0#1; 31#L42true assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 29#L90-1true main_~s__state~0#1 := 8496; 19#L188true [2021-11-20 07:03:05,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:05,445 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-20 07:03:05,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:05,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140379213] [2021-11-20 07:03:05,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:05,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:05,586 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:05,641 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:05,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:05,645 INFO L85 PathProgramCache]: Analyzing trace with hash 39285361, now seen corresponding path program 1 times [2021-11-20 07:03:05,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:05,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254962985] [2021-11-20 07:03:05,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:05,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:05,665 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:05,681 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:05,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:05,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724847, now seen corresponding path program 1 times [2021-11-20 07:03:05,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:05,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670699212] [2021-11-20 07:03:05,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:05,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:05,711 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:05,736 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:05,841 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:05,841 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:05,842 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:05,842 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:05,842 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:03:05,842 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:05,843 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:05,843 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:05,843 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration1_Loop [2021-11-20 07:03:05,844 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:05,844 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:05,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:05,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:05,943 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:05,944 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:03:05,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:05,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:05,951 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:05,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 07:03:05,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:03:05,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:06,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:06,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:06,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:06,010 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:06,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 07:03:06,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:03:06,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:06,073 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:03:06,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:06,093 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:06,094 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:06,094 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:06,094 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:06,094 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:03:06,094 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:06,094 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:06,094 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:06,094 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration1_Loop [2021-11-20 07:03:06,094 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:06,095 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:06,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:06,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:06,176 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:06,180 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:03:06,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:06,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:06,186 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:06,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:03:06,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:03:06,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:03:06,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:03:06,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:03:06,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:03:06,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:03:06,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:03:06,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 07:03:06,223 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:03:06,231 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:03:06,231 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:03:06,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:06,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:06,235 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:06,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 07:03:06,237 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:03:06,237 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:03:06,237 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:03:06,238 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~blastFlag~0#1) = -2*ULTIMATE.start_main_~blastFlag~0#1 + 1 Supporting invariants [] [2021-11-20 07:03:06,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:06,263 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:03:06,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:06,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:03:06,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:06,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:03:06,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:06,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:06,419 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-20 07:03:06,421 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 45 states, 44 states have (on average 1.6818181818181819) internal successors, (74), 44 states have internal predecessors, (74), 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 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:06,500 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 45 states, 44 states have (on average 1.6818181818181819) internal successors, (74), 44 states have internal predecessors, (74), 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 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 96 states and 154 transitions. Complement of second has 5 states. [2021-11-20 07:03:06,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 07:03:06,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:06,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2021-11-20 07:03:06,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 2 letters. Loop has 5 letters. [2021-11-20 07:03:06,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:06,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 7 letters. Loop has 5 letters. [2021-11-20 07:03:06,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:06,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 2 letters. Loop has 10 letters. [2021-11-20 07:03:06,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:06,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 154 transitions. [2021-11-20 07:03:06,519 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2021-11-20 07:03:06,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 82 states and 129 transitions. [2021-11-20 07:03:06,526 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2021-11-20 07:03:06,526 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2021-11-20 07:03:06,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 129 transitions. [2021-11-20 07:03:06,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:06,528 INFO L681 BuchiCegarLoop]: Abstraction has 82 states and 129 transitions. [2021-11-20 07:03:06,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 129 transitions. [2021-11-20 07:03:06,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2021-11-20 07:03:06,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.5875) internal successors, (127), 79 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:06,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 127 transitions. [2021-11-20 07:03:06,562 INFO L704 BuchiCegarLoop]: Abstraction has 80 states and 127 transitions. [2021-11-20 07:03:06,562 INFO L587 BuchiCegarLoop]: Abstraction has 80 states and 127 transitions. [2021-11-20 07:03:06,563 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 07:03:06,563 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 127 transitions. [2021-11-20 07:03:06,565 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2021-11-20 07:03:06,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:06,566 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:06,566 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-20 07:03:06,566 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-20 07:03:06,567 INFO L791 eck$LassoCheckResult]: Stem: 244#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 218#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 219#L188 assume !false; 236#L35 [2021-11-20 07:03:06,567 INFO L793 eck$LassoCheckResult]: Loop: 236#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 240#L41 assume 8466 == main_~s__state~0#1; 257#L42 assume !(0 == main_~blastFlag~0#1); 253#L90-1 main_~s__state~0#1 := 8496; 188#L188 assume !false; 236#L35 [2021-11-20 07:03:06,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:06,568 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-20 07:03:06,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:06,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390026799] [2021-11-20 07:03:06,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:06,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:06,575 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:06,584 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:06,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:06,585 INFO L85 PathProgramCache]: Analyzing trace with hash 44052933, now seen corresponding path program 1 times [2021-11-20 07:03:06,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:06,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923697670] [2021-11-20 07:03:06,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:06,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:06,590 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:06,594 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:06,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:06,595 INFO L85 PathProgramCache]: Analyzing trace with hash 297897342, now seen corresponding path program 1 times [2021-11-20 07:03:06,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:06,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799736001] [2021-11-20 07:03:06,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:06,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:06,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:06,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:06,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799736001] [2021-11-20 07:03:06,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799736001] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:06,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:06,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:03:06,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144033667] [2021-11-20 07:03:06,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:06,667 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:06,668 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:06,668 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:06,668 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:06,668 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:03:06,668 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:06,668 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:06,669 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:06,669 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration2_Loop [2021-11-20 07:03:06,669 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:06,669 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:06,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:06,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:06,713 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:06,713 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:03:06,714 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:06,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:06,715 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:06,751 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:03:06,751 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:06,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 07:03:06,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:06,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:06,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:06,828 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:06,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:03:06,843 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:06,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 07:03:06,866 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:03:06,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:06,892 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:06,892 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:06,892 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:06,892 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:06,892 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:03:06,892 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:06,892 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:06,892 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:06,893 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration2_Loop [2021-11-20 07:03:06,893 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:06,893 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:06,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:06,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:06,948 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:06,948 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:03:06,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:06,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:06,950 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:06,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:03:06,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:03:06,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:03:06,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:03:06,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:03:06,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:03:06,970 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:03:06,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:03:06,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 07:03:06,986 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:03:06,989 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:03:06,989 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:03:06,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:06,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:06,991 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:06,993 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:03:06,993 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:03:06,993 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:03:06,993 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8481 Supporting invariants [] [2021-11-20 07:03:07,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 07:03:07,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-11-20 07:03:07,034 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:03:07,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:07,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:03:07,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:07,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:03:07,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:07,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:07,140 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:03:07,141 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 127 transitions. cyclomatic complexity: 49 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:07,301 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 127 transitions. cyclomatic complexity: 49. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 236 states and 345 transitions. Complement of second has 7 states. [2021-11-20 07:03:07,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-20 07:03:07,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:07,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 49 transitions. [2021-11-20 07:03:07,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 49 transitions. Stem has 3 letters. Loop has 5 letters. [2021-11-20 07:03:07,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:07,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 49 transitions. Stem has 8 letters. Loop has 5 letters. [2021-11-20 07:03:07,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:07,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 49 transitions. Stem has 3 letters. Loop has 10 letters. [2021-11-20 07:03:07,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:07,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 236 states and 345 transitions. [2021-11-20 07:03:07,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2021-11-20 07:03:07,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 236 states to 165 states and 261 transitions. [2021-11-20 07:03:07,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2021-11-20 07:03:07,330 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 79 [2021-11-20 07:03:07,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 165 states and 261 transitions. [2021-11-20 07:03:07,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:07,331 INFO L681 BuchiCegarLoop]: Abstraction has 165 states and 261 transitions. [2021-11-20 07:03:07,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states and 261 transitions. [2021-11-20 07:03:07,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 98. [2021-11-20 07:03:07,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 98 states have (on average 1.5510204081632653) internal successors, (152), 97 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:07,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 152 transitions. [2021-11-20 07:03:07,347 INFO L704 BuchiCegarLoop]: Abstraction has 98 states and 152 transitions. [2021-11-20 07:03:07,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:07,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:03:07,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:03:07,353 INFO L87 Difference]: Start difference. First operand 98 states and 152 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:07,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:07,404 INFO L93 Difference]: Finished difference Result 178 states and 266 transitions. [2021-11-20 07:03:07,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:03:07,406 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 178 states and 266 transitions. [2021-11-20 07:03:07,414 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2021-11-20 07:03:07,419 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 178 states to 175 states and 263 transitions. [2021-11-20 07:03:07,419 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 82 [2021-11-20 07:03:07,421 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82 [2021-11-20 07:03:07,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 175 states and 263 transitions. [2021-11-20 07:03:07,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:07,422 INFO L681 BuchiCegarLoop]: Abstraction has 175 states and 263 transitions. [2021-11-20 07:03:07,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states and 263 transitions. [2021-11-20 07:03:07,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2021-11-20 07:03:07,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 173 states have (on average 1.5086705202312138) internal successors, (261), 172 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:07,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 261 transitions. [2021-11-20 07:03:07,434 INFO L704 BuchiCegarLoop]: Abstraction has 173 states and 261 transitions. [2021-11-20 07:03:07,434 INFO L587 BuchiCegarLoop]: Abstraction has 173 states and 261 transitions. [2021-11-20 07:03:07,434 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-20 07:03:07,434 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173 states and 261 transitions. [2021-11-20 07:03:07,435 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2021-11-20 07:03:07,436 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:07,436 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:07,436 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-20 07:03:07,436 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:03:07,437 INFO L791 eck$LassoCheckResult]: Stem: 895#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 859#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 860#L188 assume !false; 879#L35 [2021-11-20 07:03:07,437 INFO L793 eck$LassoCheckResult]: Loop: 879#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 887#L41 assume !(8466 == main_~s__state~0#1); 837#L44 assume 8496 == main_~s__state~0#1; 838#L45 assume !(1 == main_~blastFlag~0#1); 891#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 831#L188 assume !false; 879#L35 [2021-11-20 07:03:07,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:07,437 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 2 times [2021-11-20 07:03:07,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:07,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594112455] [2021-11-20 07:03:07,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:07,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:07,444 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:07,469 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:07,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:07,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1365768499, now seen corresponding path program 1 times [2021-11-20 07:03:07,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:07,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193099799] [2021-11-20 07:03:07,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:07,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:07,486 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:07,490 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:07,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:07,491 INFO L85 PathProgramCache]: Analyzing trace with hash 645010586, now seen corresponding path program 1 times [2021-11-20 07:03:07,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:07,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648549514] [2021-11-20 07:03:07,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:07,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:07,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:07,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:07,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648549514] [2021-11-20 07:03:07,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648549514] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:07,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:07,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:03:07,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430237467] [2021-11-20 07:03:07,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:07,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:07,622 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:07,622 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:07,622 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:07,622 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:07,622 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:03:07,622 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:07,622 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:07,622 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:07,622 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration3_Loop [2021-11-20 07:03:07,622 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:07,623 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:07,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:07,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:07,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:07,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:07,684 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:07,684 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:03:07,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:07,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:07,685 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:07,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:03:07,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:07,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 07:03:07,728 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 07:03:07,728 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~s__hit~0#1=0} Honda state: {ULTIMATE.start_main_~s__hit~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 07:03:07,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:07,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:07,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:07,795 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:07,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:03:07,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:07,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-20 07:03:07,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:07,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:07,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:07,846 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:07,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-20 07:03:07,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:03:07,855 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:07,879 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:03:07,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:07,900 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:07,900 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:07,900 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:07,900 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:07,900 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:03:07,900 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:07,900 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:07,900 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:07,900 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration3_Loop [2021-11-20 07:03:07,900 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:07,900 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:07,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:07,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:07,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:07,984 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:07,985 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:03:07,985 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:07,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:07,998 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:08,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-20 07:03:08,005 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:03:08,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:03:08,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:03:08,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:03:08,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:03:08,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:03:08,028 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:03:08,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:03:08,046 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:03:08,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:08,076 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:08,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:08,077 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:08,083 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:03:08,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:03:08,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:03:08,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:03:08,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:03:08,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:03:08,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:03:08,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:03:08,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-20 07:03:08,102 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:03:08,105 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:03:08,105 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:03:08,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:08,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:08,106 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:08,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-20 07:03:08,110 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:03:08,112 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:03:08,112 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:03:08,112 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8504 Supporting invariants [] [2021-11-20 07:03:08,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:08,132 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:03:08,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:08,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:03:08,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:08,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:03:08,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:08,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:08,227 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:03:08,228 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 173 states and 261 transitions. cyclomatic complexity: 94 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:08,394 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 173 states and 261 transitions. cyclomatic complexity: 94. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 574 states and 822 transitions. Complement of second has 7 states. [2021-11-20 07:03:08,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-20 07:03:08,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:08,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2021-11-20 07:03:08,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 84 transitions. Stem has 3 letters. Loop has 6 letters. [2021-11-20 07:03:08,401 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:08,401 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 84 transitions. Stem has 9 letters. Loop has 6 letters. [2021-11-20 07:03:08,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:08,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 84 transitions. Stem has 3 letters. Loop has 12 letters. [2021-11-20 07:03:08,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:08,405 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 574 states and 822 transitions. [2021-11-20 07:03:08,416 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 79 [2021-11-20 07:03:08,420 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 574 states to 406 states and 614 transitions. [2021-11-20 07:03:08,420 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2021-11-20 07:03:08,422 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 179 [2021-11-20 07:03:08,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 406 states and 614 transitions. [2021-11-20 07:03:08,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:08,422 INFO L681 BuchiCegarLoop]: Abstraction has 406 states and 614 transitions. [2021-11-20 07:03:08,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states and 614 transitions. [2021-11-20 07:03:08,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 238. [2021-11-20 07:03:08,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 238 states have (on average 1.4789915966386555) internal successors, (352), 237 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:08,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 352 transitions. [2021-11-20 07:03:08,459 INFO L704 BuchiCegarLoop]: Abstraction has 238 states and 352 transitions. [2021-11-20 07:03:08,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:08,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:03:08,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:03:08,460 INFO L87 Difference]: Start difference. First operand 238 states and 352 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:08,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:08,507 INFO L93 Difference]: Finished difference Result 153 states and 222 transitions. [2021-11-20 07:03:08,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:03:08,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 153 states and 222 transitions. [2021-11-20 07:03:08,512 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2021-11-20 07:03:08,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 153 states to 148 states and 217 transitions. [2021-11-20 07:03:08,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2021-11-20 07:03:08,514 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-11-20 07:03:08,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 217 transitions. [2021-11-20 07:03:08,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:08,514 INFO L681 BuchiCegarLoop]: Abstraction has 148 states and 217 transitions. [2021-11-20 07:03:08,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 217 transitions. [2021-11-20 07:03:08,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-11-20 07:03:08,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 148 states have (on average 1.4662162162162162) internal successors, (217), 147 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:08,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 217 transitions. [2021-11-20 07:03:08,527 INFO L704 BuchiCegarLoop]: Abstraction has 148 states and 217 transitions. [2021-11-20 07:03:08,527 INFO L587 BuchiCegarLoop]: Abstraction has 148 states and 217 transitions. [2021-11-20 07:03:08,527 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-20 07:03:08,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 217 transitions. [2021-11-20 07:03:08,528 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 46 [2021-11-20 07:03:08,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:08,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:08,530 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:08,530 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:03:08,531 INFO L791 eck$LassoCheckResult]: Stem: 2084#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 2051#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 2052#L188 assume !false; 2071#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2159#L41 assume 8466 == main_~s__state~0#1; 2156#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 2155#L90-1 main_~s__state~0#1 := 8496; 2153#L188 assume !false; 2074#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2129#L41 assume !(8466 == main_~s__state~0#1); 2128#L44 assume !(8496 == main_~s__state~0#1); 2028#L48 [2021-11-20 07:03:08,531 INFO L793 eck$LassoCheckResult]: Loop: 2028#L48 assume 8512 == main_~s__state~0#1; 2063#L49 main_~s__state~0#1 := 8528; 2023#L188 assume !false; 2112#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 2110#L41 assume !(8466 == main_~s__state~0#1); 2109#L44 assume !(8496 == main_~s__state~0#1); 2028#L48 [2021-11-20 07:03:08,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:08,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1200039737, now seen corresponding path program 1 times [2021-11-20 07:03:08,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:08,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41991810] [2021-11-20 07:03:08,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:08,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:08,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:08,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:08,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41991810] [2021-11-20 07:03:08,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41991810] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:08,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:08,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:03:08,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24411473] [2021-11-20 07:03:08,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:08,574 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 07:03:08,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:08,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1809521393, now seen corresponding path program 1 times [2021-11-20 07:03:08,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:08,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114982236] [2021-11-20 07:03:08,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:08,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:08,585 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:08,594 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:08,614 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:08,614 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:08,615 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:08,615 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:08,615 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:03:08,615 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:08,615 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:08,615 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:08,615 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration4_Loop [2021-11-20 07:03:08,616 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:08,616 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:08,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:08,650 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:08,651 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:03:08,651 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:08,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:08,654 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:08,661 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:03:08,661 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:08,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-20 07:03:08,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:08,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:08,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:08,725 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:08,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:03:08,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:08,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-20 07:03:08,754 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:03:08,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:08,789 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:08,789 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:08,789 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:08,789 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:08,789 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:03:08,789 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:08,789 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:08,790 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:08,790 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration4_Loop [2021-11-20 07:03:08,790 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:08,790 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:08,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:08,809 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:08,809 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:03:08,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:08,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:08,811 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:08,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-20 07:03:08,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:03:08,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:03:08,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:03:08,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:03:08,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:03:08,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:03:08,837 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:03:08,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:03:08,850 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:03:08,853 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:03:08,853 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:03:08,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:08,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:08,854 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:08,860 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:03:08,860 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:03:08,860 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:03:08,860 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8520 Supporting invariants [] [2021-11-20 07:03:08,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-20 07:03:08,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:08,886 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:03:08,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:08,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:03:08,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:08,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:03:08,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:09,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:09,012 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:03:09,013 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 148 states and 217 transitions. cyclomatic complexity: 77 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:09,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:09,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:09,280 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 148 states and 217 transitions. cyclomatic complexity: 77. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 460 states and 687 transitions. Complement of second has 9 states. [2021-11-20 07:03:09,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-11-20 07:03:09,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:09,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 130 transitions. [2021-11-20 07:03:09,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 130 transitions. Stem has 11 letters. Loop has 6 letters. [2021-11-20 07:03:09,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:09,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 130 transitions. Stem has 17 letters. Loop has 6 letters. [2021-11-20 07:03:09,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:09,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 130 transitions. Stem has 11 letters. Loop has 12 letters. [2021-11-20 07:03:09,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:09,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 460 states and 687 transitions. [2021-11-20 07:03:09,290 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 62 [2021-11-20 07:03:09,293 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 460 states to 361 states and 555 transitions. [2021-11-20 07:03:09,293 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 103 [2021-11-20 07:03:09,294 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 139 [2021-11-20 07:03:09,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 361 states and 555 transitions. [2021-11-20 07:03:09,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:09,299 INFO L681 BuchiCegarLoop]: Abstraction has 361 states and 555 transitions. [2021-11-20 07:03:09,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states and 555 transitions. [2021-11-20 07:03:09,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 206. [2021-11-20 07:03:09,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 206 states have (on average 1.4757281553398058) internal successors, (304), 205 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:09,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 304 transitions. [2021-11-20 07:03:09,306 INFO L704 BuchiCegarLoop]: Abstraction has 206 states and 304 transitions. [2021-11-20 07:03:09,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:09,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:03:09,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:03:09,308 INFO L87 Difference]: Start difference. First operand 206 states and 304 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:09,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:09,356 INFO L93 Difference]: Finished difference Result 225 states and 313 transitions. [2021-11-20 07:03:09,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:03:09,358 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 225 states and 313 transitions. [2021-11-20 07:03:09,360 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2021-11-20 07:03:09,362 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 225 states to 210 states and 296 transitions. [2021-11-20 07:03:09,362 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2021-11-20 07:03:09,362 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2021-11-20 07:03:09,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 210 states and 296 transitions. [2021-11-20 07:03:09,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:09,363 INFO L681 BuchiCegarLoop]: Abstraction has 210 states and 296 transitions. [2021-11-20 07:03:09,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states and 296 transitions. [2021-11-20 07:03:09,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 199. [2021-11-20 07:03:09,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 199 states have (on average 1.4271356783919598) internal successors, (284), 198 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:09,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 284 transitions. [2021-11-20 07:03:09,368 INFO L704 BuchiCegarLoop]: Abstraction has 199 states and 284 transitions. [2021-11-20 07:03:09,368 INFO L587 BuchiCegarLoop]: Abstraction has 199 states and 284 transitions. [2021-11-20 07:03:09,368 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-20 07:03:09,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 199 states and 284 transitions. [2021-11-20 07:03:09,369 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-11-20 07:03:09,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:09,369 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:09,371 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:09,371 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:09,372 INFO L791 eck$LassoCheckResult]: Stem: 3203#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 3169#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 3170#L188 assume !false; 3331#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3223#L41 assume 8466 == main_~s__state~0#1; 3224#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 3333#L90-1 main_~s__state~0#1 := 8496; 3193#L188 assume !false; 3194#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3198#L41 assume !(8466 == main_~s__state~0#1); 3271#L44 assume 8496 == main_~s__state~0#1; 3270#L45 assume !(1 == main_~blastFlag~0#1); 3269#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 3267#L188 assume !false; 3266#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3265#L41 assume !(8466 == main_~s__state~0#1); 3145#L44 assume !(8496 == main_~s__state~0#1); 3146#L48 assume !(8512 == main_~s__state~0#1); 3190#L52 [2021-11-20 07:03:09,372 INFO L793 eck$LassoCheckResult]: Loop: 3190#L52 assume 8528 == main_~s__state~0#1; 3229#L53 main_~s__state~0#1 := 8544; 3141#L188 assume !false; 3251#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 3248#L41 assume !(8466 == main_~s__state~0#1); 3246#L44 assume !(8496 == main_~s__state~0#1); 3243#L48 assume !(8512 == main_~s__state~0#1); 3190#L52 [2021-11-20 07:03:09,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:09,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1540003514, now seen corresponding path program 1 times [2021-11-20 07:03:09,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:09,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949630330] [2021-11-20 07:03:09,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:09,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:09,423 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:09,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:09,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949630330] [2021-11-20 07:03:09,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949630330] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:09,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:09,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:03:09,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159883737] [2021-11-20 07:03:09,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:09,425 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 07:03:09,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:09,425 INFO L85 PathProgramCache]: Analyzing trace with hash 460397777, now seen corresponding path program 1 times [2021-11-20 07:03:09,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:09,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146692499] [2021-11-20 07:03:09,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:09,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:09,430 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:09,436 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:09,457 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:09,457 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:09,457 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:09,457 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:09,457 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:03:09,457 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:09,458 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:09,458 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:09,458 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration5_Loop [2021-11-20 07:03:09,458 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:09,458 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:09,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:09,475 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:09,476 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:03:09,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:09,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:09,477 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:09,496 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:03:09,496 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:09,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-20 07:03:09,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:09,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:09,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:09,551 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:09,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:03:09,557 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:09,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-20 07:03:09,578 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:03:09,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:09,617 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:09,617 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:09,617 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:09,617 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:09,617 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:03:09,617 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:09,617 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:09,617 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:09,617 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration5_Loop [2021-11-20 07:03:09,617 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:09,617 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:09,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:09,638 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:09,638 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:03:09,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:09,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:09,639 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:09,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:03:09,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:03:09,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:03:09,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:03:09,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:03:09,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:03:09,652 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:03:09,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:03:09,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-20 07:03:09,670 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:03:09,674 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:03:09,674 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:03:09,674 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:09,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:09,676 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:09,678 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:03:09,678 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:03:09,678 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:03:09,678 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8536 Supporting invariants [] [2021-11-20 07:03:09,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-20 07:03:09,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:09,716 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:03:09,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:09,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:03:09,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:09,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:03:09,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:09,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:09,855 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:03:09,856 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 199 states and 284 transitions. cyclomatic complexity: 93 Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:10,021 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 199 states and 284 transitions. cyclomatic complexity: 93. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 529 states and 778 transitions. Complement of second has 9 states. [2021-11-20 07:03:10,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-11-20 07:03:10,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:10,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions. [2021-11-20 07:03:10,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 135 transitions. Stem has 18 letters. Loop has 7 letters. [2021-11-20 07:03:10,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:10,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 135 transitions. Stem has 25 letters. Loop has 7 letters. [2021-11-20 07:03:10,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:10,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 135 transitions. Stem has 18 letters. Loop has 14 letters. [2021-11-20 07:03:10,033 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:10,033 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 529 states and 778 transitions. [2021-11-20 07:03:10,039 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 80 [2021-11-20 07:03:10,043 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 529 states to 438 states and 654 transitions. [2021-11-20 07:03:10,043 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2021-11-20 07:03:10,044 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 158 [2021-11-20 07:03:10,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 438 states and 654 transitions. [2021-11-20 07:03:10,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:10,044 INFO L681 BuchiCegarLoop]: Abstraction has 438 states and 654 transitions. [2021-11-20 07:03:10,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states and 654 transitions. [2021-11-20 07:03:10,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 285. [2021-11-20 07:03:10,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 285 states have (on average 1.4280701754385965) internal successors, (407), 284 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:10,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 407 transitions. [2021-11-20 07:03:10,052 INFO L704 BuchiCegarLoop]: Abstraction has 285 states and 407 transitions. [2021-11-20 07:03:10,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:10,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:03:10,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:03:10,053 INFO L87 Difference]: Start difference. First operand 285 states and 407 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:10,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:10,069 INFO L93 Difference]: Finished difference Result 342 states and 464 transitions. [2021-11-20 07:03:10,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:03:10,070 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 342 states and 464 transitions. [2021-11-20 07:03:10,073 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 70 [2021-11-20 07:03:10,076 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 342 states to 342 states and 464 transitions. [2021-11-20 07:03:10,076 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 105 [2021-11-20 07:03:10,077 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 105 [2021-11-20 07:03:10,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 342 states and 464 transitions. [2021-11-20 07:03:10,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:10,077 INFO L681 BuchiCegarLoop]: Abstraction has 342 states and 464 transitions. [2021-11-20 07:03:10,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states and 464 transitions. [2021-11-20 07:03:10,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-11-20 07:03:10,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 342 states have (on average 1.3567251461988303) internal successors, (464), 341 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:10,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 464 transitions. [2021-11-20 07:03:10,085 INFO L704 BuchiCegarLoop]: Abstraction has 342 states and 464 transitions. [2021-11-20 07:03:10,085 INFO L587 BuchiCegarLoop]: Abstraction has 342 states and 464 transitions. [2021-11-20 07:03:10,085 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-20 07:03:10,085 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 342 states and 464 transitions. [2021-11-20 07:03:10,087 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 70 [2021-11-20 07:03:10,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:10,087 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:10,088 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:10,089 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:10,089 INFO L791 eck$LassoCheckResult]: Stem: 4662#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 4627#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 4628#L188 assume !false; 4649#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 4680#L41 assume 8466 == main_~s__state~0#1; 4681#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 4853#L90-1 main_~s__state~0#1 := 8496; 4851#L188 assume !false; 4849#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 4847#L41 assume !(8466 == main_~s__state~0#1); 4843#L44 assume 8496 == main_~s__state~0#1; 4838#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 4837#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 4834#L188 assume !false; 4832#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 4829#L41 assume !(8466 == main_~s__state~0#1); 4826#L44 assume !(8496 == main_~s__state~0#1); 4827#L48 assume !(8512 == main_~s__state~0#1); 4653#L52 assume !(8528 == main_~s__state~0#1); 4609#L56 [2021-11-20 07:03:10,089 INFO L793 eck$LassoCheckResult]: Loop: 4609#L56 assume 8544 == main_~s__state~0#1; 4610#L57 assume !(0 != 1 + main_~s__verify_mode~0#1);main_~s__state~0#1 := 8560; 4599#L188 assume !false; 4701#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 4699#L41 assume !(8466 == main_~s__state~0#1); 4697#L44 assume !(8496 == main_~s__state~0#1); 4695#L48 assume !(8512 == main_~s__state~0#1); 4694#L52 assume !(8528 == main_~s__state~0#1); 4609#L56 [2021-11-20 07:03:10,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:10,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1304815340, now seen corresponding path program 1 times [2021-11-20 07:03:10,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:10,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084202518] [2021-11-20 07:03:10,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:10,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:10,112 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:10,131 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:10,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:10,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1040610643, now seen corresponding path program 1 times [2021-11-20 07:03:10,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:10,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363687990] [2021-11-20 07:03:10,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:10,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:10,145 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:10,150 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:10,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:10,151 INFO L85 PathProgramCache]: Analyzing trace with hash 290150040, now seen corresponding path program 1 times [2021-11-20 07:03:10,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:10,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126041666] [2021-11-20 07:03:10,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:10,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:10,199 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 07:03:10,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:10,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126041666] [2021-11-20 07:03:10,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126041666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:10,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:10,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:03:10,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29636988] [2021-11-20 07:03:10,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:10,250 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:10,250 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:10,250 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:10,251 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:10,251 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:03:10,251 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:10,251 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:10,251 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:10,251 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration6_Loop [2021-11-20 07:03:10,251 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:10,251 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:10,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:10,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:10,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:10,279 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:10,279 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:03:10,280 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:10,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:10,280 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:10,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:03:10,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:10,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-20 07:03:10,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:10,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:10,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:10,345 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:10,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:03:10,348 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:10,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-20 07:03:10,374 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:03:10,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:10,406 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:10,407 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:10,407 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:10,407 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:10,407 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:03:10,407 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:10,407 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:10,407 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:10,407 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration6_Loop [2021-11-20 07:03:10,407 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:10,407 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:10,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:10,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:10,437 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:10,437 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:03:10,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:10,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:10,439 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:10,444 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:03:10,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:03:10,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:03:10,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:03:10,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:03:10,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:03:10,454 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:03:10,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:03:10,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-20 07:03:10,457 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:03:10,461 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:03:10,461 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:03:10,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:10,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:10,463 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:10,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-20 07:03:10,464 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:03:10,464 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:03:10,464 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:03:10,464 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8552 Supporting invariants [] [2021-11-20 07:03:10,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-11-20 07:03:10,493 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:03:10,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:10,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:03:10,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:10,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:03:10,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:10,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:10,643 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:03:10,643 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 342 states and 464 transitions. cyclomatic complexity: 134 Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:10,807 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 342 states and 464 transitions. cyclomatic complexity: 134. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 692 states and 980 transitions. Complement of second has 9 states. [2021-11-20 07:03:10,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-11-20 07:03:10,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:10,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 142 transitions. [2021-11-20 07:03:10,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 142 transitions. Stem has 19 letters. Loop has 8 letters. [2021-11-20 07:03:10,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:10,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 142 transitions. Stem has 27 letters. Loop has 8 letters. [2021-11-20 07:03:10,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:10,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 142 transitions. Stem has 19 letters. Loop has 16 letters. [2021-11-20 07:03:10,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:10,809 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 692 states and 980 transitions. [2021-11-20 07:03:10,817 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 98 [2021-11-20 07:03:10,822 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 692 states to 609 states and 865 transitions. [2021-11-20 07:03:10,822 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 164 [2021-11-20 07:03:10,823 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 193 [2021-11-20 07:03:10,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 609 states and 865 transitions. [2021-11-20 07:03:10,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:10,824 INFO L681 BuchiCegarLoop]: Abstraction has 609 states and 865 transitions. [2021-11-20 07:03:10,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states and 865 transitions. [2021-11-20 07:03:10,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 469. [2021-11-20 07:03:10,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 469 states have (on average 1.3773987206823028) internal successors, (646), 468 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:10,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 646 transitions. [2021-11-20 07:03:10,835 INFO L704 BuchiCegarLoop]: Abstraction has 469 states and 646 transitions. [2021-11-20 07:03:10,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:10,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:03:10,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:03:10,837 INFO L87 Difference]: Start difference. First operand 469 states and 646 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:10,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:10,907 INFO L93 Difference]: Finished difference Result 583 states and 762 transitions. [2021-11-20 07:03:10,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:03:10,908 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 583 states and 762 transitions. [2021-11-20 07:03:10,912 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 100 [2021-11-20 07:03:10,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 583 states to 547 states and 726 transitions. [2021-11-20 07:03:10,917 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 169 [2021-11-20 07:03:10,918 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 173 [2021-11-20 07:03:10,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 547 states and 726 transitions. [2021-11-20 07:03:10,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:10,918 INFO L681 BuchiCegarLoop]: Abstraction has 547 states and 726 transitions. [2021-11-20 07:03:10,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states and 726 transitions. [2021-11-20 07:03:10,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 493. [2021-11-20 07:03:10,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 493 states have (on average 1.359026369168357) internal successors, (670), 492 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:10,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 670 transitions. [2021-11-20 07:03:10,930 INFO L704 BuchiCegarLoop]: Abstraction has 493 states and 670 transitions. [2021-11-20 07:03:10,930 INFO L587 BuchiCegarLoop]: Abstraction has 493 states and 670 transitions. [2021-11-20 07:03:10,930 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-20 07:03:10,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 493 states and 670 transitions. [2021-11-20 07:03:10,933 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 98 [2021-11-20 07:03:10,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:10,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:10,934 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:10,934 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:10,934 INFO L791 eck$LassoCheckResult]: Stem: 6857#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 6823#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 6824#L188 assume !false; 7173#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 7172#L41 assume 8466 == main_~s__state~0#1; 7171#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 7169#L90-1 main_~s__state~0#1 := 8496; 7168#L188 assume !false; 7166#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 7164#L41 assume !(8466 == main_~s__state~0#1); 7162#L44 assume 8496 == main_~s__state~0#1; 7153#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 7149#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 6845#L188 [2021-11-20 07:03:10,935 INFO L793 eck$LassoCheckResult]: Loop: 6845#L188 assume !false; 6846#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 6851#L41 assume !(8466 == main_~s__state~0#1); 6800#L44 assume !(8496 == main_~s__state~0#1); 6801#L48 assume !(8512 == main_~s__state~0#1); 6849#L52 assume !(8528 == main_~s__state~0#1); 6807#L56 assume !(8544 == main_~s__state~0#1); 6808#L60 assume !(8560 == main_~s__state~0#1); 6858#L64 assume !(8576 == main_~s__state~0#1); 6859#L68 assume !(8592 == main_~s__state~0#1); 6868#L72 assume !(8608 == main_~s__state~0#1); 6880#L76 assume !(8640 == main_~s__state~0#1); 6829#L80 assume 8656 == main_~s__state~0#1; 6830#L81 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 6862#L174-1 main_~s__state~0#1 := 8672; 6845#L188 [2021-11-20 07:03:10,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:10,935 INFO L85 PathProgramCache]: Analyzing trace with hash -2108014467, now seen corresponding path program 1 times [2021-11-20 07:03:10,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:10,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489306183] [2021-11-20 07:03:10,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:10,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:10,941 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:10,948 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:10,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:10,948 INFO L85 PathProgramCache]: Analyzing trace with hash -318790614, now seen corresponding path program 1 times [2021-11-20 07:03:10,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:10,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385605032] [2021-11-20 07:03:10,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:10,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:10,952 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:10,956 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:10,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:10,957 INFO L85 PathProgramCache]: Analyzing trace with hash -444277714, now seen corresponding path program 1 times [2021-11-20 07:03:10,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:10,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117009678] [2021-11-20 07:03:10,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:10,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:10,964 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:10,972 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:11,006 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:11,007 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:11,007 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:11,007 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:11,007 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:03:11,007 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:11,007 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:11,007 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:11,007 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration7_Loop [2021-11-20 07:03:11,007 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:11,008 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:11,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:11,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:11,041 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:11,041 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:03:11,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:11,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:11,042 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:11,051 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:03:11,051 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:11,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-20 07:03:11,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:11,113 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:11,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:11,114 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:11,120 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:03:11,120 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:11,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-20 07:03:11,143 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:03:11,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:11,175 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:11,175 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:11,175 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:11,175 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:11,175 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:03:11,175 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:11,175 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:11,175 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:11,175 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration7_Loop [2021-11-20 07:03:11,176 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:11,176 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:11,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:11,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:11,215 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:11,215 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:03:11,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:11,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:11,216 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:11,218 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:03:11,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:03:11,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:03:11,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:03:11,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:03:11,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:03:11,229 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:03:11,229 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:03:11,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-20 07:03:11,242 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:03:11,244 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:03:11,244 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:03:11,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:11,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:11,246 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:11,255 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:03:11,255 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:03:11,255 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:03:11,255 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~blastFlag~0#1) = -2*ULTIMATE.start_main_~blastFlag~0#1 + 5 Supporting invariants [] [2021-11-20 07:03:11,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-20 07:03:11,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:11,275 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:03:11,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:11,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:03:11,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:11,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:03:11,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:11,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:11,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:11,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:11,510 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-20 07:03:11,511 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 493 states and 670 transitions. cyclomatic complexity: 193 Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:11,543 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 493 states and 670 transitions. cyclomatic complexity: 193. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 751 states and 1024 transitions. Complement of second has 4 states. [2021-11-20 07:03:11,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 07:03:11,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:11,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 129 transitions. [2021-11-20 07:03:11,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 129 transitions. Stem has 13 letters. Loop has 15 letters. [2021-11-20 07:03:11,545 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:11,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 129 transitions. Stem has 28 letters. Loop has 15 letters. [2021-11-20 07:03:11,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:11,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 129 transitions. Stem has 13 letters. Loop has 30 letters. [2021-11-20 07:03:11,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:11,546 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 751 states and 1024 transitions. [2021-11-20 07:03:11,552 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 155 [2021-11-20 07:03:11,558 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 751 states to 684 states and 933 transitions. [2021-11-20 07:03:11,558 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 205 [2021-11-20 07:03:11,559 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 208 [2021-11-20 07:03:11,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 684 states and 933 transitions. [2021-11-20 07:03:11,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:11,560 INFO L681 BuchiCegarLoop]: Abstraction has 684 states and 933 transitions. [2021-11-20 07:03:11,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states and 933 transitions. [2021-11-20 07:03:11,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 678. [2021-11-20 07:03:11,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 678 states have (on average 1.3657817109144543) internal successors, (926), 677 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:11,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 926 transitions. [2021-11-20 07:03:11,583 INFO L704 BuchiCegarLoop]: Abstraction has 678 states and 926 transitions. [2021-11-20 07:03:11,584 INFO L587 BuchiCegarLoop]: Abstraction has 678 states and 926 transitions. [2021-11-20 07:03:11,584 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-20 07:03:11,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 678 states and 926 transitions. [2021-11-20 07:03:11,592 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 155 [2021-11-20 07:03:11,592 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:11,592 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:11,593 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:11,593 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:11,593 INFO L791 eck$LassoCheckResult]: Stem: 8214#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 8170#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 8171#L188 assume !false; 8474#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 8460#L41 assume 8466 == main_~s__state~0#1; 8459#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 8457#L90-1 main_~s__state~0#1 := 8496; 8456#L188 assume !false; 8455#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 8454#L41 assume !(8466 == main_~s__state~0#1); 8443#L44 assume 8496 == main_~s__state~0#1; 8437#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 8435#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 8278#L188 assume !false; 8525#L35 [2021-11-20 07:03:11,594 INFO L793 eck$LassoCheckResult]: Loop: 8525#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 8523#L41 assume !(8466 == main_~s__state~0#1); 8479#L44 assume !(8496 == main_~s__state~0#1); 8477#L48 assume !(8512 == main_~s__state~0#1); 8475#L52 assume !(8528 == main_~s__state~0#1); 8476#L56 assume !(8544 == main_~s__state~0#1); 8514#L60 assume !(8560 == main_~s__state~0#1); 8512#L64 assume !(8576 == main_~s__state~0#1); 8511#L68 assume !(8592 == main_~s__state~0#1); 8510#L72 assume !(8608 == main_~s__state~0#1); 8471#L76 assume !(8640 == main_~s__state~0#1); 8468#L80 assume 8656 == main_~s__state~0#1; 8219#L81 assume !(2 == main_~blastFlag~0#1); 8220#L174-1 main_~s__state~0#1 := 8672; 8212#L188 assume !false; 8525#L35 [2021-11-20 07:03:11,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:11,594 INFO L85 PathProgramCache]: Analyzing trace with hash -923939026, now seen corresponding path program 2 times [2021-11-20 07:03:11,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:11,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957521531] [2021-11-20 07:03:11,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:11,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:11,605 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:11,619 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:11,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:11,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1835507732, now seen corresponding path program 1 times [2021-11-20 07:03:11,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:11,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327882351] [2021-11-20 07:03:11,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:11,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:11,623 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:11,626 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:11,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:11,627 INFO L85 PathProgramCache]: Analyzing trace with hash -887705313, now seen corresponding path program 1 times [2021-11-20 07:03:11,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:11,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361501552] [2021-11-20 07:03:11,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:11,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:11,664 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 07:03:11,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:11,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361501552] [2021-11-20 07:03:11,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361501552] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:11,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:11,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:03:11,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893342928] [2021-11-20 07:03:11,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:11,697 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:11,697 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:11,698 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:11,698 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:11,698 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:03:11,698 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:11,698 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:11,698 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:11,698 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration8_Loop [2021-11-20 07:03:11,699 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:11,699 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:11,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:11,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:11,732 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:11,733 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:03:11,733 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:11,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:11,734 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:11,737 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:03:11,737 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:11,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-20 07:03:11,762 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 07:03:11,763 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~blastFlag~0#1=3} Honda state: {ULTIMATE.start_main_~blastFlag~0#1=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 07:03:11,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:11,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:11,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:11,789 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:11,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-20 07:03:11,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:03:11,791 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:11,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:11,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:11,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:11,822 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:11,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-20 07:03:11,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:03:11,824 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:11,833 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:03:11,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-11-20 07:03:11,852 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:11,852 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:11,852 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:11,852 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:11,852 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:03:11,853 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:11,853 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:11,853 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:11,853 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration8_Loop [2021-11-20 07:03:11,853 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:11,853 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:11,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:11,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:11,888 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:11,888 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:03:11,888 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:11,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:11,890 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:11,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-20 07:03:11,891 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:03:11,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:03:11,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:03:11,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:03:11,898 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-20 07:03:11,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:03:11,900 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-20 07:03:11,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:03:11,916 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:03:11,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-11-20 07:03:11,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:11,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:11,936 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:11,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-20 07:03:11,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:03:11,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:03:11,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:03:11,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:03:11,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:03:11,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:03:11,946 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:03:11,946 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:03:11,948 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:03:11,950 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:03:11,950 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:03:11,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:11,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:11,951 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:11,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-20 07:03:11,952 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:03:11,952 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:03:11,952 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:03:11,952 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8664 Supporting invariants [] [2021-11-20 07:03:11,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:11,972 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:03:11,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:12,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:03:12,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:12,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:03:12,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:12,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:12,133 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:03:12,134 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 678 states and 926 transitions. cyclomatic complexity: 267 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2021-11-20 07:03:12,253 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 678 states and 926 transitions. cyclomatic complexity: 267. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) Result 1562 states and 2071 transitions. Complement of second has 9 states. [2021-11-20 07:03:12,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-11-20 07:03:12,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2021-11-20 07:03:12,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2021-11-20 07:03:12,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 99 transitions. Stem has 14 letters. Loop has 15 letters. [2021-11-20 07:03:12,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:12,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 99 transitions. Stem has 29 letters. Loop has 15 letters. [2021-11-20 07:03:12,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:12,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 99 transitions. Stem has 14 letters. Loop has 30 letters. [2021-11-20 07:03:12,258 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:12,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1562 states and 2071 transitions. [2021-11-20 07:03:12,272 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 190 [2021-11-20 07:03:12,283 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1562 states to 1337 states and 1769 transitions. [2021-11-20 07:03:12,283 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 280 [2021-11-20 07:03:12,284 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 291 [2021-11-20 07:03:12,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1337 states and 1769 transitions. [2021-11-20 07:03:12,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:12,285 INFO L681 BuchiCegarLoop]: Abstraction has 1337 states and 1769 transitions. [2021-11-20 07:03:12,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states and 1769 transitions. [2021-11-20 07:03:12,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1292. [2021-11-20 07:03:12,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1292 states have (on average 1.3212074303405572) internal successors, (1707), 1291 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:12,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1707 transitions. [2021-11-20 07:03:12,338 INFO L704 BuchiCegarLoop]: Abstraction has 1292 states and 1707 transitions. [2021-11-20 07:03:12,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:12,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:03:12,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:03:12,339 INFO L87 Difference]: Start difference. First operand 1292 states and 1707 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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) [2021-11-20 07:03:12,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:12,367 INFO L93 Difference]: Finished difference Result 1457 states and 1909 transitions. [2021-11-20 07:03:12,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:03:12,371 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1457 states and 1909 transitions. [2021-11-20 07:03:12,382 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 301 [2021-11-20 07:03:12,395 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1457 states to 1274 states and 1665 transitions. [2021-11-20 07:03:12,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:12,399 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 359 [2021-11-20 07:03:12,400 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 374 [2021-11-20 07:03:12,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1274 states and 1665 transitions. [2021-11-20 07:03:12,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:12,401 INFO L681 BuchiCegarLoop]: Abstraction has 1274 states and 1665 transitions. [2021-11-20 07:03:12,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states and 1665 transitions. [2021-11-20 07:03:12,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1262. [2021-11-20 07:03:12,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1262 states have (on average 1.309825673534073) internal successors, (1653), 1261 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:12,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1653 transitions. [2021-11-20 07:03:12,430 INFO L704 BuchiCegarLoop]: Abstraction has 1262 states and 1653 transitions. [2021-11-20 07:03:12,430 INFO L587 BuchiCegarLoop]: Abstraction has 1262 states and 1653 transitions. [2021-11-20 07:03:12,430 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-11-20 07:03:12,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1262 states and 1653 transitions. [2021-11-20 07:03:12,437 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 301 [2021-11-20 07:03:12,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:12,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:12,438 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:12,438 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:12,438 INFO L791 eck$LassoCheckResult]: Stem: 13316#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 13275#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 13276#L188 assume !false; 13796#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 13797#L41 assume 8466 == main_~s__state~0#1; 14132#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 14129#L90-1 main_~s__state~0#1 := 8496; 13300#L188 assume !false; 13301#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 14498#L41 assume !(8466 == main_~s__state~0#1); 14497#L44 assume 8496 == main_~s__state~0#1; 14496#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 13345#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 13891#L188 assume !false; 13304#L35 [2021-11-20 07:03:12,439 INFO L793 eck$LassoCheckResult]: Loop: 13304#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 13305#L41 assume !(8466 == main_~s__state~0#1); 13254#L44 assume !(8496 == main_~s__state~0#1); 13255#L48 assume !(8512 == main_~s__state~0#1); 13339#L52 assume !(8528 == main_~s__state~0#1); 13260#L56 assume !(8544 == main_~s__state~0#1); 13261#L60 assume !(8560 == main_~s__state~0#1); 13317#L64 assume !(8576 == main_~s__state~0#1); 13318#L68 assume !(8592 == main_~s__state~0#1); 13328#L72 assume !(8608 == main_~s__state~0#1); 13351#L76 assume !(8640 == main_~s__state~0#1); 13359#L80 assume !(8656 == main_~s__state~0#1); 13574#L84 assume 8672 == main_~s__state~0#1; 13572#L85 assume !(4 == main_~blastFlag~0#1); 13570#L184 assume !(5 == main_~blastFlag~0#1); 13346#L181-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 13347#L188 assume !false; 13590#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 13588#L41 assume !(8466 == main_~s__state~0#1); 13586#L44 assume 8496 == main_~s__state~0#1; 13587#L45 assume !(1 == main_~blastFlag~0#1); 13591#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 13313#L188 assume !false; 13304#L35 [2021-11-20 07:03:12,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:12,439 INFO L85 PathProgramCache]: Analyzing trace with hash -923939026, now seen corresponding path program 3 times [2021-11-20 07:03:12,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:12,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761625482] [2021-11-20 07:03:12,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:12,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:12,444 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:12,449 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:12,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:12,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1607513209, now seen corresponding path program 1 times [2021-11-20 07:03:12,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:12,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516037540] [2021-11-20 07:03:12,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:12,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:12,463 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:12,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:12,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516037540] [2021-11-20 07:03:12,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516037540] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:12,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:12,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:03:12,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837114276] [2021-11-20 07:03:12,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:12,465 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:03:12,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:12,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:03:12,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:03:12,466 INFO L87 Difference]: Start difference. First operand 1262 states and 1653 transitions. cyclomatic complexity: 420 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:12,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:12,520 INFO L93 Difference]: Finished difference Result 1036 states and 1257 transitions. [2021-11-20 07:03:12,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:03:12,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1036 states and 1257 transitions. [2021-11-20 07:03:12,528 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 202 [2021-11-20 07:03:12,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1036 states to 654 states and 800 transitions. [2021-11-20 07:03:12,534 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 257 [2021-11-20 07:03:12,534 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 261 [2021-11-20 07:03:12,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 654 states and 800 transitions. [2021-11-20 07:03:12,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:12,535 INFO L681 BuchiCegarLoop]: Abstraction has 654 states and 800 transitions. [2021-11-20 07:03:12,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states and 800 transitions. [2021-11-20 07:03:12,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 651. [2021-11-20 07:03:12,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 651 states have (on average 1.2211981566820276) internal successors, (795), 650 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:12,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 795 transitions. [2021-11-20 07:03:12,549 INFO L704 BuchiCegarLoop]: Abstraction has 651 states and 795 transitions. [2021-11-20 07:03:12,549 INFO L587 BuchiCegarLoop]: Abstraction has 651 states and 795 transitions. [2021-11-20 07:03:12,549 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-11-20 07:03:12,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 651 states and 795 transitions. [2021-11-20 07:03:12,553 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 202 [2021-11-20 07:03:12,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:12,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:12,554 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:12,554 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:12,554 INFO L791 eck$LassoCheckResult]: Stem: 15621#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 15578#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 15579#L188 assume !false; 15874#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 15871#L41 assume 8466 == main_~s__state~0#1; 15869#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 15630#L90-1 main_~s__state~0#1 := 8496; 15600#L188 assume !false; 15601#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 16161#L41 assume !(8466 == main_~s__state~0#1); 16159#L44 assume 8496 == main_~s__state~0#1; 16157#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 16156#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 15614#L188 assume !false; 16039#L35 [2021-11-20 07:03:12,555 INFO L793 eck$LassoCheckResult]: Loop: 16039#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 16038#L41 assume !(8466 == main_~s__state~0#1); 16037#L44 assume !(8496 == main_~s__state~0#1); 16036#L48 assume !(8512 == main_~s__state~0#1); 16012#L52 assume !(8528 == main_~s__state~0#1); 16011#L56 assume !(8544 == main_~s__state~0#1); 16009#L60 assume !(8560 == main_~s__state~0#1); 16006#L64 assume !(8576 == main_~s__state~0#1); 16007#L68 assume !(8592 == main_~s__state~0#1); 16017#L72 assume !(8608 == main_~s__state~0#1); 15985#L76 assume !(8640 == main_~s__state~0#1); 15984#L80 assume !(8656 == main_~s__state~0#1); 15615#L84 assume 8672 == main_~s__state~0#1; 15568#L85 assume !(4 == main_~blastFlag~0#1); 15569#L184 assume !(5 == main_~blastFlag~0#1); 15598#L181-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 15648#L188 assume !false; 16035#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 16034#L41 assume !(8466 == main_~s__state~0#1); 16033#L44 assume !(8496 == main_~s__state~0#1); 16031#L48 assume !(8512 == main_~s__state~0#1); 16029#L52 assume !(8528 == main_~s__state~0#1); 16027#L56 assume !(8544 == main_~s__state~0#1); 16025#L60 assume !(8560 == main_~s__state~0#1); 16023#L64 assume !(8576 == main_~s__state~0#1); 16004#L68 assume !(8592 == main_~s__state~0#1); 15987#L72 assume !(8608 == main_~s__state~0#1); 15988#L76 assume 8640 == main_~s__state~0#1; 15580#L77 assume !(3 == main_~blastFlag~0#1); 15581#L163-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8656; 16041#L188 assume !false; 16039#L35 [2021-11-20 07:03:12,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:12,555 INFO L85 PathProgramCache]: Analyzing trace with hash -923939026, now seen corresponding path program 4 times [2021-11-20 07:03:12,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:12,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129874896] [2021-11-20 07:03:12,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:12,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:12,559 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:12,564 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:12,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:12,565 INFO L85 PathProgramCache]: Analyzing trace with hash 530770115, now seen corresponding path program 1 times [2021-11-20 07:03:12,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:12,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016368744] [2021-11-20 07:03:12,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:12,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:12,581 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:12,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:12,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016368744] [2021-11-20 07:03:12,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016368744] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:12,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:12,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:03:12,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527699069] [2021-11-20 07:03:12,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:12,582 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:03:12,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:12,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:03:12,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:03:12,583 INFO L87 Difference]: Start difference. First operand 651 states and 795 transitions. cyclomatic complexity: 166 Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) [2021-11-20 07:03:12,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:12,592 INFO L93 Difference]: Finished difference Result 634 states and 773 transitions. [2021-11-20 07:03:12,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:03:12,593 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 634 states and 773 transitions. [2021-11-20 07:03:12,597 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 170 [2021-11-20 07:03:12,602 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 634 states to 622 states and 758 transitions. [2021-11-20 07:03:12,602 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 247 [2021-11-20 07:03:12,602 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 247 [2021-11-20 07:03:12,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 622 states and 758 transitions. [2021-11-20 07:03:12,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:12,603 INFO L681 BuchiCegarLoop]: Abstraction has 622 states and 758 transitions. [2021-11-20 07:03:12,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states and 758 transitions. [2021-11-20 07:03:12,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 567. [2021-11-20 07:03:12,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 567 states have (on average 1.2380952380952381) internal successors, (702), 566 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:12,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 702 transitions. [2021-11-20 07:03:12,615 INFO L704 BuchiCegarLoop]: Abstraction has 567 states and 702 transitions. [2021-11-20 07:03:12,616 INFO L587 BuchiCegarLoop]: Abstraction has 567 states and 702 transitions. [2021-11-20 07:03:12,616 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-11-20 07:03:12,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 567 states and 702 transitions. [2021-11-20 07:03:12,619 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 146 [2021-11-20 07:03:12,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:12,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:12,620 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:12,620 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:12,620 INFO L791 eck$LassoCheckResult]: Stem: 16912#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 16869#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 16870#L188 assume !false; 17317#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 17318#L41 assume 8466 == main_~s__state~0#1; 17320#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 16921#L90-1 main_~s__state~0#1 := 8496; 16892#L188 assume !false; 16893#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 17395#L41 assume !(8466 == main_~s__state~0#1); 17394#L44 assume 8496 == main_~s__state~0#1; 17380#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 17381#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 17146#L188 assume !false; 17278#L35 [2021-11-20 07:03:12,620 INFO L793 eck$LassoCheckResult]: Loop: 17278#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 17343#L41 assume !(8466 == main_~s__state~0#1); 17336#L44 assume !(8496 == main_~s__state~0#1); 16896#L48 assume !(8512 == main_~s__state~0#1); 16897#L52 assume !(8528 == main_~s__state~0#1); 16855#L56 assume !(8544 == main_~s__state~0#1); 16856#L60 assume !(8560 == main_~s__state~0#1); 16935#L64 assume !(8576 == main_~s__state~0#1); 17325#L68 assume !(8592 == main_~s__state~0#1); 17323#L72 assume !(8608 == main_~s__state~0#1); 17322#L76 assume !(8640 == main_~s__state~0#1); 17321#L80 assume !(8656 == main_~s__state~0#1); 16908#L84 assume 8672 == main_~s__state~0#1; 16859#L85 assume !(4 == main_~blastFlag~0#1); 16860#L184 assume !(5 == main_~blastFlag~0#1); 16885#L181-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 16943#L188 assume !false; 17278#L35 [2021-11-20 07:03:12,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:12,621 INFO L85 PathProgramCache]: Analyzing trace with hash -923939026, now seen corresponding path program 5 times [2021-11-20 07:03:12,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:12,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896071975] [2021-11-20 07:03:12,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:12,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:12,625 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:12,630 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:12,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:12,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1282190981, now seen corresponding path program 1 times [2021-11-20 07:03:12,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:12,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136616506] [2021-11-20 07:03:12,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:12,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:12,634 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:12,637 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:12,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:12,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1587248888, now seen corresponding path program 1 times [2021-11-20 07:03:12,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:12,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782792920] [2021-11-20 07:03:12,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:12,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:12,655 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 07:03:12,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:12,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782792920] [2021-11-20 07:03:12,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782792920] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:12,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:12,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:03:12,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489880675] [2021-11-20 07:03:12,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:12,698 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:12,698 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:12,698 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:12,698 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:12,699 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:03:12,699 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:12,699 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:12,699 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:12,699 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration11_Loop [2021-11-20 07:03:12,699 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:12,699 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:12,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:12,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:12,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:12,764 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:12,765 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:03:12,765 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:12,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:12,770 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:12,772 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:03:12,772 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:12,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-20 07:03:12,786 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 07:03:12,787 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~s__hit~0#1=-1} Honda state: {ULTIMATE.start_main_~s__hit~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 07:03:12,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-11-20 07:03:12,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:12,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:12,808 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:12,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-11-20 07:03:12,810 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:03:12,810 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:12,822 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 07:03:12,822 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~blastFlag~0#1=6} Honda state: {ULTIMATE.start_main_~blastFlag~0#1=6} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 07:03:12,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-11-20 07:03:12,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:12,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:12,843 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:12,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-11-20 07:03:12,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:03:12,847 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:12,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:12,880 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:12,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:12,881 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:12,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-11-20 07:03:12,882 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:03:12,882 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:12,892 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:03:12,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:12,914 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:12,914 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:12,914 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:12,914 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:12,915 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:03:12,915 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:12,915 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:12,915 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:12,915 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration11_Loop [2021-11-20 07:03:12,915 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:12,915 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:12,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:12,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:12,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:12,974 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:12,974 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:03:12,974 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:12,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:12,975 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:12,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-11-20 07:03:12,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:03:12,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:03:12,992 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:03:12,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:03:12,993 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-20 07:03:12,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:03:12,994 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-20 07:03:12,994 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:03:13,005 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:03:13,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:13,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:13,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:13,028 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:13,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-11-20 07:03:13,030 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:03:13,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:03:13,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:03:13,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:03:13,038 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-20 07:03:13,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:03:13,039 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-20 07:03:13,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:03:13,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:03:13,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-11-20 07:03:13,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:13,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:13,061 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:13,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-11-20 07:03:13,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:03:13,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:03:13,069 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:03:13,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:03:13,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:03:13,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:03:13,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:03:13,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:03:13,072 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:03:13,074 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-20 07:03:13,074 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:03:13,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:13,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:13,075 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:13,076 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:03:13,076 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:03:13,076 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:03:13,076 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = 1*ULTIMATE.start_main_~s__state~0#1 Supporting invariants [] [2021-11-20 07:03:13,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-11-20 07:03:13,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:13,097 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:03:13,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:13,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:03:13,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:13,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:03:13,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:13,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:13,263 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:03:13,263 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 567 states and 702 transitions. cyclomatic complexity: 157 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:13,274 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 567 states and 702 transitions. cyclomatic complexity: 157. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 573 states and 708 transitions. Complement of second has 5 states. [2021-11-20 07:03:13,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 07:03:13,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:13,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-11-20 07:03:13,276 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 14 letters. Loop has 17 letters. [2021-11-20 07:03:13,276 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:13,276 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 07:03:13,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:13,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:03:13,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:13,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:03:13,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:13,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:13,411 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:03:13,411 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 567 states and 702 transitions. cyclomatic complexity: 157 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:13,421 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 567 states and 702 transitions. cyclomatic complexity: 157. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 573 states and 708 transitions. Complement of second has 5 states. [2021-11-20 07:03:13,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 07:03:13,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:13,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-11-20 07:03:13,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 14 letters. Loop has 17 letters. [2021-11-20 07:03:13,426 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:13,426 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 07:03:13,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:13,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:03:13,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:13,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:03:13,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:13,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:13,576 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:03:13,576 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 567 states and 702 transitions. cyclomatic complexity: 157 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:13,664 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 567 states and 702 transitions. cyclomatic complexity: 157. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 1051 states and 1283 transitions. Complement of second has 8 states. [2021-11-20 07:03:13,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-20 07:03:13,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:13,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 108 transitions. [2021-11-20 07:03:13,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 108 transitions. Stem has 14 letters. Loop has 17 letters. [2021-11-20 07:03:13,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:13,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 108 transitions. Stem has 31 letters. Loop has 17 letters. [2021-11-20 07:03:13,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:13,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 108 transitions. Stem has 14 letters. Loop has 34 letters. [2021-11-20 07:03:13,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:13,667 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1051 states and 1283 transitions. [2021-11-20 07:03:13,674 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 142 [2021-11-20 07:03:13,680 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1051 states to 686 states and 832 transitions. [2021-11-20 07:03:13,680 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 137 [2021-11-20 07:03:13,680 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 213 [2021-11-20 07:03:13,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 686 states and 832 transitions. [2021-11-20 07:03:13,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:13,681 INFO L681 BuchiCegarLoop]: Abstraction has 686 states and 832 transitions. [2021-11-20 07:03:13,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states and 832 transitions. [2021-11-20 07:03:13,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 594. [2021-11-20 07:03:13,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 594 states have (on average 1.245791245791246) internal successors, (740), 593 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:13,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 740 transitions. [2021-11-20 07:03:13,693 INFO L704 BuchiCegarLoop]: Abstraction has 594 states and 740 transitions. [2021-11-20 07:03:13,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:13,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:03:13,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:03:13,694 INFO L87 Difference]: Start difference. First operand 594 states and 740 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:13,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:13,737 INFO L93 Difference]: Finished difference Result 587 states and 730 transitions. [2021-11-20 07:03:13,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:03:13,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 587 states and 730 transitions. [2021-11-20 07:03:13,742 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 140 [2021-11-20 07:03:13,747 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 587 states to 565 states and 708 transitions. [2021-11-20 07:03:13,747 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 166 [2021-11-20 07:03:13,747 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 166 [2021-11-20 07:03:13,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 565 states and 708 transitions. [2021-11-20 07:03:13,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:13,748 INFO L681 BuchiCegarLoop]: Abstraction has 565 states and 708 transitions. [2021-11-20 07:03:13,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states and 708 transitions. [2021-11-20 07:03:13,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 564. [2021-11-20 07:03:13,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 564 states have (on average 1.25354609929078) internal successors, (707), 563 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:13,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 707 transitions. [2021-11-20 07:03:13,760 INFO L704 BuchiCegarLoop]: Abstraction has 564 states and 707 transitions. [2021-11-20 07:03:13,760 INFO L587 BuchiCegarLoop]: Abstraction has 564 states and 707 transitions. [2021-11-20 07:03:13,760 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-11-20 07:03:13,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 564 states and 707 transitions. [2021-11-20 07:03:13,763 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 140 [2021-11-20 07:03:13,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:13,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:13,764 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:13,765 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:13,765 INFO L791 eck$LassoCheckResult]: Stem: 21170#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 21134#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 21135#L188 assume !false; 21562#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 21563#L41 assume 8466 == main_~s__state~0#1; 21645#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 21643#L90-1 main_~s__state~0#1 := 8496; 21641#L188 assume !false; 21640#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 21638#L41 assume !(8466 == main_~s__state~0#1); 21637#L44 assume 8496 == main_~s__state~0#1; 21622#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 21164#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 21165#L188 assume !false; 21159#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 21160#L41 assume !(8466 == main_~s__state~0#1); 21115#L44 assume !(8496 == main_~s__state~0#1); 21116#L48 assume !(8512 == main_~s__state~0#1); 21369#L52 assume !(8528 == main_~s__state~0#1); 21278#L56 assume !(8544 == main_~s__state~0#1); 21209#L60 [2021-11-20 07:03:13,765 INFO L793 eck$LassoCheckResult]: Loop: 21209#L60 assume 8560 == main_~s__state~0#1; 21119#L61 main_~s__state~0#1 := 8576; 21111#L188 assume !false; 21241#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 21235#L41 assume !(8466 == main_~s__state~0#1); 21228#L44 assume !(8496 == main_~s__state~0#1); 21223#L48 assume !(8512 == main_~s__state~0#1); 21218#L52 assume !(8528 == main_~s__state~0#1); 21212#L56 assume !(8544 == main_~s__state~0#1); 21209#L60 [2021-11-20 07:03:13,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:13,766 INFO L85 PathProgramCache]: Analyzing trace with hash 985223291, now seen corresponding path program 1 times [2021-11-20 07:03:13,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:13,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855669803] [2021-11-20 07:03:13,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:13,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:13,798 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 07:03:13,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:13,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855669803] [2021-11-20 07:03:13,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855669803] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:13,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:13,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:03:13,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689021024] [2021-11-20 07:03:13,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:13,799 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 07:03:13,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:13,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1708032834, now seen corresponding path program 1 times [2021-11-20 07:03:13,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:13,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744915546] [2021-11-20 07:03:13,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:13,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:13,803 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:13,805 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:13,822 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:13,822 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:13,822 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:13,822 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:13,822 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:03:13,823 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:13,823 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:13,823 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:13,823 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration12_Loop [2021-11-20 07:03:13,823 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:13,823 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:13,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:13,838 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:13,838 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:03:13,839 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:13,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:13,840 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:13,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:03:13,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:13,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-11-20 07:03:13,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:13,898 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:13,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:13,899 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:13,907 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:03:13,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:13,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-11-20 07:03:13,927 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:03:13,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:13,959 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:13,959 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:13,960 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:13,960 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:13,960 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:03:13,960 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:13,960 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:13,960 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:13,960 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration12_Loop [2021-11-20 07:03:13,960 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:13,960 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:13,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:13,982 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:13,982 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:03:13,982 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:13,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:13,983 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:13,985 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:03:13,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:03:13,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:03:13,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:03:13,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:03:13,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:03:13,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:03:13,996 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:03:13,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-11-20 07:03:14,010 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:03:14,012 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:03:14,012 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:03:14,012 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:14,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:14,014 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:14,022 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:03:14,023 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:03:14,023 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:03:14,023 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8568 Supporting invariants [] [2021-11-20 07:03:14,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-11-20 07:03:14,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:14,055 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:03:14,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:14,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:03:14,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:14,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:14,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:03:14,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:14,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:14,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:14,266 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:03:14,266 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 564 states and 707 transitions. cyclomatic complexity: 163 Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:14,448 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 564 states and 707 transitions. cyclomatic complexity: 163. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 975 states and 1257 transitions. Complement of second has 9 states. [2021-11-20 07:03:14,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-11-20 07:03:14,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:14,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 157 transitions. [2021-11-20 07:03:14,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 157 transitions. Stem has 20 letters. Loop has 9 letters. [2021-11-20 07:03:14,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:14,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 157 transitions. Stem has 29 letters. Loop has 9 letters. [2021-11-20 07:03:14,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:14,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 157 transitions. Stem has 20 letters. Loop has 18 letters. [2021-11-20 07:03:14,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:14,451 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 975 states and 1257 transitions. [2021-11-20 07:03:14,458 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 180 [2021-11-20 07:03:14,465 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 975 states to 839 states and 1084 transitions. [2021-11-20 07:03:14,466 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 238 [2021-11-20 07:03:14,466 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 249 [2021-11-20 07:03:14,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 839 states and 1084 transitions. [2021-11-20 07:03:14,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:14,467 INFO L681 BuchiCegarLoop]: Abstraction has 839 states and 1084 transitions. [2021-11-20 07:03:14,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states and 1084 transitions. [2021-11-20 07:03:14,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 668. [2021-11-20 07:03:14,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 668 states have (on average 1.2889221556886228) internal successors, (861), 667 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:14,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 861 transitions. [2021-11-20 07:03:14,482 INFO L704 BuchiCegarLoop]: Abstraction has 668 states and 861 transitions. [2021-11-20 07:03:14,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:14,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:03:14,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:03:14,483 INFO L87 Difference]: Start difference. First operand 668 states and 861 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:14,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:14,529 INFO L93 Difference]: Finished difference Result 718 states and 900 transitions. [2021-11-20 07:03:14,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:03:14,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 718 states and 900 transitions. [2021-11-20 07:03:14,536 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 171 [2021-11-20 07:03:14,541 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 718 states to 694 states and 871 transitions. [2021-11-20 07:03:14,541 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 206 [2021-11-20 07:03:14,542 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 212 [2021-11-20 07:03:14,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 694 states and 871 transitions. [2021-11-20 07:03:14,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:14,545 INFO L681 BuchiCegarLoop]: Abstraction has 694 states and 871 transitions. [2021-11-20 07:03:14,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states and 871 transitions. [2021-11-20 07:03:14,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 686. [2021-11-20 07:03:14,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 686 states have (on average 1.2565597667638484) internal successors, (862), 685 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:14,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 862 transitions. [2021-11-20 07:03:14,558 INFO L704 BuchiCegarLoop]: Abstraction has 686 states and 862 transitions. [2021-11-20 07:03:14,558 INFO L587 BuchiCegarLoop]: Abstraction has 686 states and 862 transitions. [2021-11-20 07:03:14,559 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-11-20 07:03:14,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 686 states and 862 transitions. [2021-11-20 07:03:14,562 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 170 [2021-11-20 07:03:14,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:14,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:14,564 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:14,564 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:14,564 INFO L791 eck$LassoCheckResult]: Stem: 24210#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 24174#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 24175#L188 assume !false; 24715#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 24716#L41 assume 8466 == main_~s__state~0#1; 24222#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 24223#L90-1 main_~s__state~0#1 := 8496; 24714#L188 assume !false; 24713#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 24711#L41 assume !(8466 == main_~s__state~0#1); 24157#L44 assume 8496 == main_~s__state~0#1; 24158#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 24202#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 24203#L188 assume !false; 24199#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 24200#L41 assume !(8466 == main_~s__state~0#1); 24226#L44 assume !(8496 == main_~s__state~0#1); 24196#L48 assume 8512 == main_~s__state~0#1; 24197#L49 main_~s__state~0#1 := 8528; 24563#L188 assume !false; 24561#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 24558#L41 assume !(8466 == main_~s__state~0#1); 24556#L44 assume !(8496 == main_~s__state~0#1); 24553#L48 assume !(8512 == main_~s__state~0#1); 24554#L52 assume !(8528 == main_~s__state~0#1); 24393#L56 assume !(8544 == main_~s__state~0#1); 24349#L60 assume !(8560 == main_~s__state~0#1); 24254#L64 [2021-11-20 07:03:14,564 INFO L793 eck$LassoCheckResult]: Loop: 24254#L64 assume 8576 == main_~s__state~0#1; 24251#L65 main_~tmp___1~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 24188#L147 assume !(2 == main_~tmp___1~0#1);main_~s__state~0#1 := 8592; 24155#L188 assume !false; 24308#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 24305#L41 assume !(8466 == main_~s__state~0#1); 24303#L44 assume !(8496 == main_~s__state~0#1); 24301#L48 assume !(8512 == main_~s__state~0#1); 24298#L52 assume !(8528 == main_~s__state~0#1); 24291#L56 assume !(8544 == main_~s__state~0#1); 24253#L60 assume !(8560 == main_~s__state~0#1); 24254#L64 [2021-11-20 07:03:14,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:14,565 INFO L85 PathProgramCache]: Analyzing trace with hash 368372739, now seen corresponding path program 1 times [2021-11-20 07:03:14,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:14,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079610512] [2021-11-20 07:03:14,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:14,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:14,587 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-20 07:03:14,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:14,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079610512] [2021-11-20 07:03:14,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079610512] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:14,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:14,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:03:14,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752575031] [2021-11-20 07:03:14,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:14,589 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 07:03:14,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:14,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1797154313, now seen corresponding path program 1 times [2021-11-20 07:03:14,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:14,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444435092] [2021-11-20 07:03:14,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:14,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:14,592 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:14,596 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:14,628 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:14,629 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:14,629 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:14,629 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:14,629 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:03:14,629 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:14,629 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:14,629 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:14,630 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration13_Loop [2021-11-20 07:03:14,630 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:14,630 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:14,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:14,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:14,680 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:14,680 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:03:14,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:14,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:14,682 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:14,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:03:14,687 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:14,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-11-20 07:03:14,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-11-20 07:03:14,733 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:14,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:14,734 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:14,736 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:03:14,736 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:14,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-11-20 07:03:14,746 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:03:14,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:14,765 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:14,765 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:14,765 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:14,766 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:14,766 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:03:14,766 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:14,766 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:14,766 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:14,766 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration13_Loop [2021-11-20 07:03:14,766 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:14,766 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:14,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:14,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:14,801 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:14,802 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:03:14,802 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:14,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:14,803 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:14,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-11-20 07:03:14,804 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:03:14,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:03:14,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:03:14,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:03:14,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:03:14,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:03:14,812 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:03:14,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:03:14,814 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:03:14,816 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:03:14,816 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:03:14,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:14,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:14,817 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:14,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-11-20 07:03:14,818 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:03:14,818 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:03:14,818 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:03:14,818 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = -1*ULTIMATE.start_main_~s__state~0#1 + 8584 Supporting invariants [] [2021-11-20 07:03:14,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:14,838 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:03:14,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:14,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:03:14,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:14,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:03:14,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:15,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:15,006 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:03:15,007 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 686 states and 862 transitions. cyclomatic complexity: 196 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:15,170 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 686 states and 862 transitions. cyclomatic complexity: 196. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 1151 states and 1475 transitions. Complement of second has 9 states. [2021-11-20 07:03:15,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-11-20 07:03:15,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:15,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 162 transitions. [2021-11-20 07:03:15,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 162 transitions. Stem has 27 letters. Loop has 11 letters. [2021-11-20 07:03:15,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:15,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 162 transitions. Stem has 38 letters. Loop has 11 letters. [2021-11-20 07:03:15,172 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:15,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 162 transitions. Stem has 27 letters. Loop has 22 letters. [2021-11-20 07:03:15,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:15,173 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1151 states and 1475 transitions. [2021-11-20 07:03:15,181 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 228 [2021-11-20 07:03:15,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1151 states to 1010 states and 1297 transitions. [2021-11-20 07:03:15,196 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 300 [2021-11-20 07:03:15,197 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 308 [2021-11-20 07:03:15,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1010 states and 1297 transitions. [2021-11-20 07:03:15,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:15,197 INFO L681 BuchiCegarLoop]: Abstraction has 1010 states and 1297 transitions. [2021-11-20 07:03:15,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states and 1297 transitions. [2021-11-20 07:03:15,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 829. [2021-11-20 07:03:15,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 829 states have (on average 1.2882991556091676) internal successors, (1068), 828 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:15,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1068 transitions. [2021-11-20 07:03:15,234 INFO L704 BuchiCegarLoop]: Abstraction has 829 states and 1068 transitions. [2021-11-20 07:03:15,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:15,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:03:15,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:03:15,235 INFO L87 Difference]: Start difference. First operand 829 states and 1068 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:15,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:15,279 INFO L93 Difference]: Finished difference Result 886 states and 1109 transitions. [2021-11-20 07:03:15,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:03:15,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 886 states and 1109 transitions. [2021-11-20 07:03:15,286 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 212 [2021-11-20 07:03:15,291 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 886 states to 851 states and 1068 transitions. [2021-11-20 07:03:15,292 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 262 [2021-11-20 07:03:15,293 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 264 [2021-11-20 07:03:15,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 851 states and 1068 transitions. [2021-11-20 07:03:15,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:15,293 INFO L681 BuchiCegarLoop]: Abstraction has 851 states and 1068 transitions. [2021-11-20 07:03:15,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states and 1068 transitions. [2021-11-20 07:03:15,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 836. [2021-11-20 07:03:15,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 836 states have (on average 1.2583732057416268) internal successors, (1052), 835 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:15,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1052 transitions. [2021-11-20 07:03:15,309 INFO L704 BuchiCegarLoop]: Abstraction has 836 states and 1052 transitions. [2021-11-20 07:03:15,309 INFO L587 BuchiCegarLoop]: Abstraction has 836 states and 1052 transitions. [2021-11-20 07:03:15,309 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-11-20 07:03:15,309 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 836 states and 1052 transitions. [2021-11-20 07:03:15,312 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 211 [2021-11-20 07:03:15,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:15,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:15,313 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:15,313 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:15,313 INFO L791 eck$LassoCheckResult]: Stem: 27906#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 27869#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 27870#L188 assume !false; 28320#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28318#L41 assume 8466 == main_~s__state~0#1; 28314#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 28311#L90-1 main_~s__state~0#1 := 8496; 28308#L188 assume !false; 28305#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28303#L41 assume !(8466 == main_~s__state~0#1); 28300#L44 assume 8496 == main_~s__state~0#1; 28298#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 28295#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 28292#L188 assume !false; 28289#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28287#L41 assume !(8466 == main_~s__state~0#1); 28285#L44 assume !(8496 == main_~s__state~0#1); 28283#L48 assume 8512 == main_~s__state~0#1; 28282#L49 main_~s__state~0#1 := 8528; 28281#L188 assume !false; 28279#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28272#L41 assume !(8466 == main_~s__state~0#1); 28270#L44 assume !(8496 == main_~s__state~0#1); 28267#L48 assume !(8512 == main_~s__state~0#1); 28245#L52 assume 8528 == main_~s__state~0#1; 28234#L53 main_~s__state~0#1 := 8544; 28226#L188 assume !false; 28221#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28214#L41 assume !(8466 == main_~s__state~0#1); 28205#L44 assume !(8496 == main_~s__state~0#1); 28204#L48 assume !(8512 == main_~s__state~0#1); 28148#L52 assume !(8528 == main_~s__state~0#1); 28149#L56 assume !(8544 == main_~s__state~0#1); 28108#L60 assume !(8560 == main_~s__state~0#1); 28035#L64 assume 8576 == main_~s__state~0#1; 27953#L65 [2021-11-20 07:03:15,315 INFO L793 eck$LassoCheckResult]: Loop: 27953#L65 main_~tmp___1~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 28134#L147 assume 2 == main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 28131#L188 assume !false; 28129#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28125#L41 assume 8466 == main_~s__state~0#1; 28024#L42 assume !(0 == main_~blastFlag~0#1); 28118#L90-1 main_~s__state~0#1 := 8496; 28114#L188 assume !false; 28109#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28106#L41 assume !(8466 == main_~s__state~0#1); 28105#L44 assume 8496 == main_~s__state~0#1; 28019#L45 assume !(1 == main_~blastFlag~0#1); 28099#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 28096#L188 assume !false; 28092#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28088#L41 assume !(8466 == main_~s__state~0#1); 28086#L44 assume !(8496 == main_~s__state~0#1); 28081#L48 assume 8512 == main_~s__state~0#1; 28014#L49 main_~s__state~0#1 := 8528; 28072#L188 assume !false; 28069#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28065#L41 assume !(8466 == main_~s__state~0#1); 28061#L44 assume !(8496 == main_~s__state~0#1); 28056#L48 assume !(8512 == main_~s__state~0#1); 28048#L52 assume 8528 == main_~s__state~0#1; 28009#L53 main_~s__state~0#1 := 8544; 28032#L188 assume !false; 28029#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 28023#L41 assume !(8466 == main_~s__state~0#1); 28018#L44 assume !(8496 == main_~s__state~0#1); 28013#L48 assume !(8512 == main_~s__state~0#1); 28008#L52 assume !(8528 == main_~s__state~0#1); 28003#L56 assume !(8544 == main_~s__state~0#1); 27998#L60 assume !(8560 == main_~s__state~0#1); 27995#L64 assume 8576 == main_~s__state~0#1; 27953#L65 [2021-11-20 07:03:15,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:15,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1975408204, now seen corresponding path program 1 times [2021-11-20 07:03:15,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:15,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733468563] [2021-11-20 07:03:15,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:15,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:15,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-11-20 07:03:15,342 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-20 07:03:15,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:15,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733468563] [2021-11-20 07:03:15,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733468563] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:15,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:15,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:03:15,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558650391] [2021-11-20 07:03:15,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:15,344 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 07:03:15,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:15,345 INFO L85 PathProgramCache]: Analyzing trace with hash -2135132753, now seen corresponding path program 1 times [2021-11-20 07:03:15,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:15,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247998306] [2021-11-20 07:03:15,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:15,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:15,371 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-20 07:03:15,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:15,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247998306] [2021-11-20 07:03:15,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247998306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:15,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:15,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:03:15,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512735601] [2021-11-20 07:03:15,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:15,373 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:03:15,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:15,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:03:15,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:03:15,373 INFO L87 Difference]: Start difference. First operand 836 states and 1052 transitions. cyclomatic complexity: 236 Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:15,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:15,416 INFO L93 Difference]: Finished difference Result 878 states and 1072 transitions. [2021-11-20 07:03:15,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:03:15,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 878 states and 1072 transitions. [2021-11-20 07:03:15,421 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 206 [2021-11-20 07:03:15,426 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 878 states to 831 states and 1019 transitions. [2021-11-20 07:03:15,426 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 258 [2021-11-20 07:03:15,427 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 260 [2021-11-20 07:03:15,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 831 states and 1019 transitions. [2021-11-20 07:03:15,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:15,427 INFO L681 BuchiCegarLoop]: Abstraction has 831 states and 1019 transitions. [2021-11-20 07:03:15,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states and 1019 transitions. [2021-11-20 07:03:15,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 808. [2021-11-20 07:03:15,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 808 states have (on average 1.2314356435643565) internal successors, (995), 807 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:15,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 995 transitions. [2021-11-20 07:03:15,442 INFO L704 BuchiCegarLoop]: Abstraction has 808 states and 995 transitions. [2021-11-20 07:03:15,443 INFO L587 BuchiCegarLoop]: Abstraction has 808 states and 995 transitions. [2021-11-20 07:03:15,443 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-11-20 07:03:15,443 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 808 states and 995 transitions. [2021-11-20 07:03:15,445 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 205 [2021-11-20 07:03:15,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:15,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:15,447 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:15,448 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:15,448 INFO L791 eck$LassoCheckResult]: Stem: 29627#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 29590#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 29591#L188 assume !false; 30012#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 30006#L41 assume 8466 == main_~s__state~0#1; 30000#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 29936#L90-1 main_~s__state~0#1 := 8496; 29934#L188 assume !false; 29931#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29929#L41 assume !(8466 == main_~s__state~0#1); 29926#L44 assume 8496 == main_~s__state~0#1; 29925#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 29922#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 29918#L188 assume !false; 29916#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29914#L41 assume !(8466 == main_~s__state~0#1); 29913#L44 assume !(8496 == main_~s__state~0#1); 29912#L48 assume 8512 == main_~s__state~0#1; 29910#L49 main_~s__state~0#1 := 8528; 29908#L188 assume !false; 29907#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29905#L41 assume !(8466 == main_~s__state~0#1); 29903#L44 assume !(8496 == main_~s__state~0#1); 29901#L48 assume !(8512 == main_~s__state~0#1); 29899#L52 assume 8528 == main_~s__state~0#1; 29897#L53 main_~s__state~0#1 := 8544; 29896#L188 assume !false; 29894#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29892#L41 assume !(8466 == main_~s__state~0#1); 29890#L44 assume !(8496 == main_~s__state~0#1); 29888#L48 assume !(8512 == main_~s__state~0#1); 29886#L52 assume !(8528 == main_~s__state~0#1); 29884#L56 assume 8544 == main_~s__state~0#1; 29875#L57 assume !(0 != 1 + main_~s__verify_mode~0#1);main_~s__state~0#1 := 8560; 29871#L188 assume !false; 29869#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29867#L41 assume !(8466 == main_~s__state~0#1); 29860#L44 assume !(8496 == main_~s__state~0#1); 29855#L48 assume !(8512 == main_~s__state~0#1); 29851#L52 assume !(8528 == main_~s__state~0#1); 29827#L56 assume !(8544 == main_~s__state~0#1); 29828#L60 assume !(8560 == main_~s__state~0#1); 29764#L64 assume 8576 == main_~s__state~0#1; 29666#L65 [2021-11-20 07:03:15,448 INFO L793 eck$LassoCheckResult]: Loop: 29666#L65 main_~tmp___1~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 29605#L147 assume 2 == main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 29606#L188 assume !false; 29911#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29909#L41 assume 8466 == main_~s__state~0#1; 29742#L42 assume !(0 == main_~blastFlag~0#1); 29906#L90-1 main_~s__state~0#1 := 8496; 29904#L188 assume !false; 29902#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29900#L41 assume !(8466 == main_~s__state~0#1); 29898#L44 assume 8496 == main_~s__state~0#1; 29737#L45 assume !(1 == main_~blastFlag~0#1); 29895#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 29893#L188 assume !false; 29891#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29889#L41 assume !(8466 == main_~s__state~0#1); 29887#L44 assume !(8496 == main_~s__state~0#1); 29885#L48 assume 8512 == main_~s__state~0#1; 29732#L49 main_~s__state~0#1 := 8528; 29882#L188 assume !false; 29881#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29880#L41 assume !(8466 == main_~s__state~0#1); 29873#L44 assume !(8496 == main_~s__state~0#1); 29870#L48 assume !(8512 == main_~s__state~0#1); 29868#L52 assume 8528 == main_~s__state~0#1; 29727#L53 main_~s__state~0#1 := 8544; 29856#L188 assume !false; 29852#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29847#L41 assume !(8466 == main_~s__state~0#1); 29845#L44 assume !(8496 == main_~s__state~0#1); 29842#L48 assume !(8512 == main_~s__state~0#1); 29839#L52 assume !(8528 == main_~s__state~0#1); 29772#L56 assume 8544 == main_~s__state~0#1; 29722#L57 assume !(0 != 1 + main_~s__verify_mode~0#1);main_~s__state~0#1 := 8560; 29751#L188 assume !false; 29746#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 29741#L41 assume !(8466 == main_~s__state~0#1); 29736#L44 assume !(8496 == main_~s__state~0#1); 29731#L48 assume !(8512 == main_~s__state~0#1); 29726#L52 assume !(8528 == main_~s__state~0#1); 29721#L56 assume !(8544 == main_~s__state~0#1); 29716#L60 assume !(8560 == main_~s__state~0#1); 29713#L64 assume 8576 == main_~s__state~0#1; 29666#L65 [2021-11-20 07:03:15,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:15,449 INFO L85 PathProgramCache]: Analyzing trace with hash 242898568, now seen corresponding path program 1 times [2021-11-20 07:03:15,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:15,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41653284] [2021-11-20 07:03:15,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:15,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:15,480 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-20 07:03:15,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:15,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41653284] [2021-11-20 07:03:15,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41653284] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:15,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:15,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:03:15,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511122634] [2021-11-20 07:03:15,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:15,482 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 07:03:15,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:15,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1911359613, now seen corresponding path program 1 times [2021-11-20 07:03:15,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:15,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703950080] [2021-11-20 07:03:15,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:15,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:15,499 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-20 07:03:15,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:15,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703950080] [2021-11-20 07:03:15,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703950080] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:15,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:15,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:03:15,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064697442] [2021-11-20 07:03:15,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:15,502 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:03:15,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:15,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:03:15,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:03:15,503 INFO L87 Difference]: Start difference. First operand 808 states and 995 transitions. cyclomatic complexity: 204 Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:15,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:15,548 INFO L93 Difference]: Finished difference Result 889 states and 1061 transitions. [2021-11-20 07:03:15,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:03:15,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 889 states and 1061 transitions. [2021-11-20 07:03:15,552 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 182 [2021-11-20 07:03:15,557 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 889 states to 825 states and 988 transitions. [2021-11-20 07:03:15,558 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 243 [2021-11-20 07:03:15,558 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 244 [2021-11-20 07:03:15,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 825 states and 988 transitions. [2021-11-20 07:03:15,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:15,558 INFO L681 BuchiCegarLoop]: Abstraction has 825 states and 988 transitions. [2021-11-20 07:03:15,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states and 988 transitions. [2021-11-20 07:03:15,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 816. [2021-11-20 07:03:15,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 816 states have (on average 1.1997549019607843) internal successors, (979), 815 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:15,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 979 transitions. [2021-11-20 07:03:15,572 INFO L704 BuchiCegarLoop]: Abstraction has 816 states and 979 transitions. [2021-11-20 07:03:15,573 INFO L587 BuchiCegarLoop]: Abstraction has 816 states and 979 transitions. [2021-11-20 07:03:15,573 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-11-20 07:03:15,573 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 816 states and 979 transitions. [2021-11-20 07:03:15,575 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 182 [2021-11-20 07:03:15,576 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:15,576 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:15,578 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:15,578 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:15,580 INFO L791 eck$LassoCheckResult]: Stem: 31333#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 31295#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 31296#L188 assume !false; 31586#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 31587#L41 assume 8466 == main_~s__state~0#1; 31345#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 31340#L90-1 main_~s__state~0#1 := 8496; 31315#L188 assume !false; 31316#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 32019#L41 assume !(8466 == main_~s__state~0#1); 32015#L44 assume 8496 == main_~s__state~0#1; 32012#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 31329#L97-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8656; 31331#L188 assume !false; 32083#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 32082#L41 assume !(8466 == main_~s__state~0#1); 32081#L44 assume !(8496 == main_~s__state~0#1); 31319#L48 assume !(8512 == main_~s__state~0#1); 31320#L52 assume !(8528 == main_~s__state~0#1); 31284#L56 assume !(8544 == main_~s__state~0#1); 31285#L60 assume !(8560 == main_~s__state~0#1); 31336#L64 assume !(8576 == main_~s__state~0#1); 31337#L68 assume !(8592 == main_~s__state~0#1); 31344#L72 assume !(8608 == main_~s__state~0#1); 32062#L76 assume !(8640 == main_~s__state~0#1); 32060#L80 assume 8656 == main_~s__state~0#1; 32058#L81 assume 2 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 3; 32056#L174-1 main_~s__state~0#1 := 8672; 31939#L188 assume !false; 31937#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 31935#L41 assume !(8466 == main_~s__state~0#1); 31933#L44 assume !(8496 == main_~s__state~0#1); 31931#L48 assume !(8512 == main_~s__state~0#1); 31929#L52 assume !(8528 == main_~s__state~0#1); 31927#L56 assume !(8544 == main_~s__state~0#1); 31925#L60 assume !(8560 == main_~s__state~0#1); 31923#L64 assume !(8576 == main_~s__state~0#1); 31921#L68 assume !(8592 == main_~s__state~0#1); 31919#L72 assume !(8608 == main_~s__state~0#1); 31917#L76 assume !(8640 == main_~s__state~0#1); 31915#L80 assume !(8656 == main_~s__state~0#1); 31913#L84 assume 8672 == main_~s__state~0#1; 31911#L85 assume 4 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 5; 31907#L181-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 31902#L188 assume !false; 31876#L35 [2021-11-20 07:03:15,580 INFO L793 eck$LassoCheckResult]: Loop: 31876#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 31875#L41 assume !(8466 == main_~s__state~0#1); 31781#L44 assume !(8496 == main_~s__state~0#1); 31778#L48 assume !(8512 == main_~s__state~0#1); 31776#L52 assume !(8528 == main_~s__state~0#1); 31774#L56 assume !(8544 == main_~s__state~0#1); 31772#L60 assume !(8560 == main_~s__state~0#1); 31770#L64 assume !(8576 == main_~s__state~0#1); 31768#L68 assume !(8592 == main_~s__state~0#1); 31359#L72 assume !(8608 == main_~s__state~0#1); 31360#L76 assume !(8640 == main_~s__state~0#1); 31299#L80 assume 8656 == main_~s__state~0#1; 31300#L81 assume !(2 == main_~blastFlag~0#1); 31338#L174-1 main_~s__state~0#1 := 8672; 31350#L188 assume !false; 31904#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 31935#L41 assume !(8466 == main_~s__state~0#1); 31933#L44 assume !(8496 == main_~s__state~0#1); 31931#L48 assume !(8512 == main_~s__state~0#1); 31929#L52 assume !(8528 == main_~s__state~0#1); 31927#L56 assume !(8544 == main_~s__state~0#1); 31925#L60 assume !(8560 == main_~s__state~0#1); 31923#L64 assume !(8576 == main_~s__state~0#1); 31921#L68 assume !(8592 == main_~s__state~0#1); 31919#L72 assume !(8608 == main_~s__state~0#1); 31917#L76 assume !(8640 == main_~s__state~0#1); 31915#L80 assume !(8656 == main_~s__state~0#1); 31913#L84 assume 8672 == main_~s__state~0#1; 31911#L85 assume 4 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 5; 31907#L181-1 assume 0 != main_~s__hit~0#1;main_~s__state~0#1 := 8640; 31902#L188 assume !false; 31876#L35 [2021-11-20 07:03:15,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:15,580 INFO L85 PathProgramCache]: Analyzing trace with hash -359758799, now seen corresponding path program 1 times [2021-11-20 07:03:15,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:15,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055340222] [2021-11-20 07:03:15,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:15,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:15,610 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-20 07:03:15,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:15,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055340222] [2021-11-20 07:03:15,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055340222] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:15,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:15,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:03:15,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956488408] [2021-11-20 07:03:15,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:15,611 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 07:03:15,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:15,612 INFO L85 PathProgramCache]: Analyzing trace with hash 944749696, now seen corresponding path program 1 times [2021-11-20 07:03:15,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:15,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481427565] [2021-11-20 07:03:15,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:15,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:15,615 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:15,619 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:15,687 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:15,687 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:15,687 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:15,687 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:15,687 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:03:15,688 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:15,688 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:15,688 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:15,688 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration16_Loop [2021-11-20 07:03:15,688 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:15,688 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:15,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:15,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:15,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:15,733 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:15,733 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:03:15,733 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:15,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:15,734 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:15,738 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:03:15,738 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:15,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-11-20 07:03:15,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:15,771 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:15,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:15,772 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:15,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-11-20 07:03:15,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:03:15,774 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:03:15,814 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:03:15,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:15,850 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:03:15,850 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:03:15,850 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:03:15,850 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:03:15,851 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:03:15,851 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:15,851 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:03:15,851 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:03:15,851 INFO L133 ssoRankerPreferences]: Filename of dumped script: s3_srvr_1a.cil.c_Iteration16_Loop [2021-11-20 07:03:15,851 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:03:15,851 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:03:15,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:15,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:15,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:03:15,894 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:03:15,894 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:03:15,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:15,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:15,895 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:15,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:03:15,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:03:15,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:03:15,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:03:15,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:03:15,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:03:15,909 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:03:15,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:03:15,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-11-20 07:03:15,922 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:03:15,924 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-20 07:03:15,924 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:03:15,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:15,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:15,926 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:15,931 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:03:15,931 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:03:15,931 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:03:15,931 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~s__state~0#1) = 1*ULTIMATE.start_main_~s__state~0#1 Supporting invariants [] [2021-11-20 07:03:15,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-11-20 07:03:15,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:15,963 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:03:15,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:15,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:03:15,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:16,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:03:16,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:16,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-11-20 07:03:16,229 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:16,230 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:03:16,230 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 816 states and 979 transitions. cyclomatic complexity: 179 Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:16,241 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 816 states and 979 transitions. cyclomatic complexity: 179. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 822 states and 985 transitions. Complement of second has 5 states. [2021-11-20 07:03:16,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 07:03:16,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:16,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-11-20 07:03:16,242 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 45 letters. Loop has 31 letters. [2021-11-20 07:03:16,243 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:16,243 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 07:03:16,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:16,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:03:16,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:16,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:03:16,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:16,486 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:16,486 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:03:16,487 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 816 states and 979 transitions. cyclomatic complexity: 179 Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:16,494 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 816 states and 979 transitions. cyclomatic complexity: 179. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 822 states and 985 transitions. Complement of second has 5 states. [2021-11-20 07:03:16,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 07:03:16,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:16,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-11-20 07:03:16,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 45 letters. Loop has 31 letters. [2021-11-20 07:03:16,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:16,502 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-20 07:03:16,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:16,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:03:16,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:16,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:03:16,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:03:16,733 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:16,733 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-20 07:03:16,733 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 816 states and 979 transitions. cyclomatic complexity: 179 Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:16,864 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 816 states and 979 transitions. cyclomatic complexity: 179. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 1762 states and 2064 transitions. Complement of second has 18 states. [2021-11-20 07:03:16,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-11-20 07:03:16,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:16,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2021-11-20 07:03:16,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 128 transitions. Stem has 45 letters. Loop has 31 letters. [2021-11-20 07:03:16,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:16,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 128 transitions. Stem has 76 letters. Loop has 31 letters. [2021-11-20 07:03:16,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:16,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 128 transitions. Stem has 45 letters. Loop has 62 letters. [2021-11-20 07:03:16,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:03:16,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1762 states and 2064 transitions. [2021-11-20 07:03:16,882 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 146 [2021-11-20 07:03:16,896 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1762 states to 1036 states and 1214 transitions. [2021-11-20 07:03:16,896 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 227 [2021-11-20 07:03:16,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 256 [2021-11-20 07:03:16,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1036 states and 1214 transitions. [2021-11-20 07:03:16,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:16,897 INFO L681 BuchiCegarLoop]: Abstraction has 1036 states and 1214 transitions. [2021-11-20 07:03:16,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states and 1214 transitions. [2021-11-20 07:03:16,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 864. [2021-11-20 07:03:16,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 864 states have (on average 1.2025462962962963) internal successors, (1039), 863 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:16,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1039 transitions. [2021-11-20 07:03:16,913 INFO L704 BuchiCegarLoop]: Abstraction has 864 states and 1039 transitions. [2021-11-20 07:03:16,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:16,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:03:16,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:03:16,914 INFO L87 Difference]: Start difference. First operand 864 states and 1039 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:16,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:16,929 INFO L93 Difference]: Finished difference Result 861 states and 1025 transitions. [2021-11-20 07:03:16,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:03:16,930 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 861 states and 1025 transitions. [2021-11-20 07:03:16,933 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 146 [2021-11-20 07:03:16,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 861 states to 798 states and 957 transitions. [2021-11-20 07:03:16,938 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 230 [2021-11-20 07:03:16,939 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 230 [2021-11-20 07:03:16,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 798 states and 957 transitions. [2021-11-20 07:03:16,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:03:16,939 INFO L681 BuchiCegarLoop]: Abstraction has 798 states and 957 transitions. [2021-11-20 07:03:16,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states and 957 transitions. [2021-11-20 07:03:16,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 719. [2021-11-20 07:03:16,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 719 states have (on average 1.21557719054242) internal successors, (874), 718 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:16,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 874 transitions. [2021-11-20 07:03:16,951 INFO L704 BuchiCegarLoop]: Abstraction has 719 states and 874 transitions. [2021-11-20 07:03:16,951 INFO L587 BuchiCegarLoop]: Abstraction has 719 states and 874 transitions. [2021-11-20 07:03:16,952 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-11-20 07:03:16,952 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 719 states and 874 transitions. [2021-11-20 07:03:16,954 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 131 [2021-11-20 07:03:16,954 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:16,954 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:16,955 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:16,955 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:16,961 INFO L791 eck$LassoCheckResult]: Stem: 38012#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3); 37976#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_~s__state~0#1, main_~s__hit~0#1, main_~s__verify_mode~0#1, main_~s__session__peer~0#1, main_~s__s3__tmp__new_cipher__algorithms~0#1, main_~buf~0#1, main_~cb~0#1, main_~blastFlag~0#1, main_~tmp___1~0#1;havoc main_~s__state~0#1;main_~s__hit~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~s__verify_mode~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~s__session__peer~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~s__s3__tmp__new_cipher__algorithms~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~buf~0#1;havoc main_~cb~0#1;havoc main_~blastFlag~0#1;havoc main_~tmp___1~0#1;main_~s__state~0#1 := 8466;main_~blastFlag~0#1 := 0; 37977#L188 assume !false; 38350#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38347#L41 assume 8466 == main_~s__state~0#1; 38345#L42 assume 0 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 1; 38342#L90-1 main_~s__state~0#1 := 8496; 38340#L188 assume !false; 38337#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38334#L41 assume !(8466 == main_~s__state~0#1); 38330#L44 assume 8496 == main_~s__state~0#1; 38035#L45 assume 1 == main_~blastFlag~0#1;main_~blastFlag~0#1 := 2; 38007#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 38008#L188 assume !false; 38376#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38374#L41 assume !(8466 == main_~s__state~0#1); 38373#L44 assume !(8496 == main_~s__state~0#1); 38372#L48 assume 8512 == main_~s__state~0#1; 37984#L49 main_~s__state~0#1 := 8528; 37985#L188 assume !false; 38241#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38239#L41 assume !(8466 == main_~s__state~0#1); 38237#L44 assume !(8496 == main_~s__state~0#1); 38235#L48 assume !(8512 == main_~s__state~0#1); 38233#L52 assume 8528 == main_~s__state~0#1; 38045#L53 main_~s__state~0#1 := 8544; 38046#L188 assume !false; 38396#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38395#L41 assume !(8466 == main_~s__state~0#1); 38394#L44 assume !(8496 == main_~s__state~0#1); 38393#L48 assume !(8512 == main_~s__state~0#1); 38392#L52 assume !(8528 == main_~s__state~0#1); 38390#L56 assume 8544 == main_~s__state~0#1; 38383#L57 assume 0 != 1 + main_~s__verify_mode~0#1; 38384#L117 assume !(0 != main_~s__session__peer~0#1); 38388#L124 assume !(0 != (256 + main_~s__s3__tmp__new_cipher__algorithms~0#1) % 4294967296); 38386#L132 main_~s__state~0#1 := 8576; 38410#L188 assume !false; 38003#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38004#L41 assume !(8466 == main_~s__state~0#1); 37956#L44 assume !(8496 == main_~s__state~0#1); 37957#L48 assume !(8512 == main_~s__state~0#1); 38001#L52 assume !(8528 == main_~s__state~0#1); 37964#L56 assume !(8544 == main_~s__state~0#1); 37965#L60 assume !(8560 == main_~s__state~0#1); 38212#L64 assume 8576 == main_~s__state~0#1; 38056#L65 [2021-11-20 07:03:16,962 INFO L793 eck$LassoCheckResult]: Loop: 38056#L65 main_~tmp___1~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 37993#L147 assume 2 == main_~tmp___1~0#1;main_~s__state~0#1 := 8466; 37994#L188 assume !false; 38229#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38227#L41 assume 8466 == main_~s__state~0#1; 38102#L42 assume !(0 == main_~blastFlag~0#1); 38223#L90-1 main_~s__state~0#1 := 8496; 38222#L188 assume !false; 38221#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38219#L41 assume !(8466 == main_~s__state~0#1); 38217#L44 assume 8496 == main_~s__state~0#1; 38097#L45 assume !(1 == main_~blastFlag~0#1); 38215#L97-1 assume !(0 != main_~s__hit~0#1);main_~s__state~0#1 := 8512; 38210#L188 assume !false; 38207#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38203#L41 assume !(8466 == main_~s__state~0#1); 38202#L44 assume !(8496 == main_~s__state~0#1); 38201#L48 assume 8512 == main_~s__state~0#1; 38090#L49 main_~s__state~0#1 := 8528; 38195#L188 assume !false; 38193#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38192#L41 assume !(8466 == main_~s__state~0#1); 38190#L44 assume !(8496 == main_~s__state~0#1); 38188#L48 assume !(8512 == main_~s__state~0#1); 38186#L52 assume 8528 == main_~s__state~0#1; 38086#L53 main_~s__state~0#1 := 8544; 38183#L188 assume !false; 38178#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38174#L41 assume !(8466 == main_~s__state~0#1); 38169#L44 assume !(8496 == main_~s__state~0#1); 38165#L48 assume !(8512 == main_~s__state~0#1); 38160#L52 assume !(8528 == main_~s__state~0#1); 38117#L56 assume 8544 == main_~s__state~0#1; 38042#L57 assume 0 != 1 + main_~s__verify_mode~0#1; 37970#L117 assume !(0 != main_~s__session__peer~0#1); 37971#L124 assume !(0 != (256 + main_~s__s3__tmp__new_cipher__algorithms~0#1) % 4294967296); 38111#L132 main_~s__state~0#1 := 8576; 38107#L188 assume !false; 38104#L35 assume !(main_~s__state~0#1 <= 8512 && main_~blastFlag~0#1 > 2); 38101#L41 assume !(8466 == main_~s__state~0#1); 38096#L44 assume !(8496 == main_~s__state~0#1); 38089#L48 assume !(8512 == main_~s__state~0#1); 38085#L52 assume !(8528 == main_~s__state~0#1); 38082#L56 assume !(8544 == main_~s__state~0#1); 38078#L60 assume !(8560 == main_~s__state~0#1); 38074#L64 assume 8576 == main_~s__state~0#1; 38056#L65 [2021-11-20 07:03:16,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:16,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1923687841, now seen corresponding path program 1 times [2021-11-20 07:03:16,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:16,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791840365] [2021-11-20 07:03:16,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:16,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:16,981 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:17,003 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:17,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:17,003 INFO L85 PathProgramCache]: Analyzing trace with hash -180445498, now seen corresponding path program 1 times [2021-11-20 07:03:17,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:17,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122575933] [2021-11-20 07:03:17,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:17,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:17,010 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:17,023 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:17,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:17,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1007086694, now seen corresponding path program 1 times [2021-11-20 07:03:17,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:17,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024953237] [2021-11-20 07:03:17,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:17,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:17,034 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:17,052 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:17,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:03:17 BoogieIcfgContainer [2021-11-20 07:03:17,522 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 07:03:17,523 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:03:17,523 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:03:17,523 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:03:17,524 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:03:05" (3/4) ... [2021-11-20 07:03:17,526 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-20 07:03:17,570 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:03:17,571 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:03:17,571 INFO L158 Benchmark]: Toolchain (without parser) took 13039.43ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 60.9MB in the beginning and 81.8MB in the end (delta: -20.8MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2021-11-20 07:03:17,572 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 100.7MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:03:17,572 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.05ms. Allocated memory is still 100.7MB. Free memory was 60.7MB in the beginning and 75.1MB in the end (delta: -14.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 07:03:17,573 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.76ms. Allocated memory is still 100.7MB. Free memory was 75.1MB in the beginning and 73.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:03:17,573 INFO L158 Benchmark]: Boogie Preprocessor took 21.90ms. Allocated memory is still 100.7MB. Free memory was 73.3MB in the beginning and 72.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:03:17,573 INFO L158 Benchmark]: RCFGBuilder took 350.11ms. Allocated memory is still 100.7MB. Free memory was 72.1MB in the beginning and 60.4MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 07:03:17,574 INFO L158 Benchmark]: BuchiAutomizer took 12225.31ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 60.1MB in the beginning and 84.9MB in the end (delta: -24.8MB). Peak memory consumption was 73.0MB. Max. memory is 16.1GB. [2021-11-20 07:03:17,574 INFO L158 Benchmark]: Witness Printer took 48.02ms. Allocated memory is still 146.8MB. Free memory was 84.9MB in the beginning and 81.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:03:17,576 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 100.7MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.05ms. Allocated memory is still 100.7MB. Free memory was 60.7MB in the beginning and 75.1MB in the end (delta: -14.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.76ms. Allocated memory is still 100.7MB. Free memory was 75.1MB in the beginning and 73.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.90ms. Allocated memory is still 100.7MB. Free memory was 73.3MB in the beginning and 72.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.11ms. Allocated memory is still 100.7MB. Free memory was 72.1MB in the beginning and 60.4MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 12225.31ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 60.1MB in the beginning and 84.9MB in the end (delta: -24.8MB). Peak memory consumption was 73.0MB. Max. memory is 16.1GB. * Witness Printer took 48.02ms. Allocated memory is still 146.8MB. Free memory was 84.9MB in the beginning and 81.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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 26 terminating modules (14 trivial, 10 deterministic, 2 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * blastFlag + 1 and consists of 4 locations. One deterministic module has affine ranking function -1 * s__state + 8481 and consists of 4 locations. One deterministic module has affine ranking function -1 * s__state + 8504 and consists of 4 locations. One deterministic module has affine ranking function -1 * s__state + 8520 and consists of 5 locations. One deterministic module has affine ranking function -1 * s__state + 8536 and consists of 5 locations. One deterministic module has affine ranking function 8552 + -1 * s__state and consists of 5 locations. One deterministic module has affine ranking function 5 + -2 * blastFlag and consists of 3 locations. One deterministic module has affine ranking function 8664 + -1 * s__state and consists of 5 locations. One deterministic module has affine ranking function -1 * s__state + 8568 and consists of 5 locations. One deterministic module has affine ranking function 8584 + -1 * s__state and consists of 5 locations. One nondeterministic module has affine ranking function s__state and consists of 4 locations. One nondeterministic module has affine ranking function s__state and consists of 5 locations. 14 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 719 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.1s and 17 iterations. TraceHistogramMax:6. Analysis of lassos took 5.9s. Construction of modules took 1.3s. Büchi inclusion checks took 3.8s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 26. Automata minimization 0.4s AutomataMinimizationTime, 26 MinimizatonAttempts, 1624 StatesRemovedByMinimization, 24 NontrivialMinimizations. Non-live state removal took 0.3s Buchi closure took 0.0s. Biggest automaton had 1262 states and ocurred in iteration 8. Nontrivial modules had stage [10, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/13 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1351 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1335 mSDsluCounter, 2894 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1015 mSDsCounter, 205 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1994 IncrementalHoareTripleChecker+Invalid, 2199 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 205 mSolverCounterUnsat, 1879 mSDtfsCounter, 1994 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT2 conc0 concLT5 SILN0 SILU0 SILI2 SILT5 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq193 hnf89 smp100 dnf118 smp91 tf113 neg99 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 12 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 64]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7aff82ff=0, s__verify_mode=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bac5188=0, buf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@128ac19=2, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b19310a=0, s__hit=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e42933b=0, s__state=8576, tmp___1=2, NULL=1, \result=0, s__session__peer=0, NULL=0, s__s3__tmp__new_cipher__algorithms=-256, cb=0, blastFlag=2} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 64]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L21] int s__state ; [L22] int s__hit = __VERIFIER_nondet_int() ; [L23] int s__verify_mode = __VERIFIER_nondet_int() ; [L24] int s__session__peer = __VERIFIER_nondet_int() ; [L25] unsigned long s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_long() ; [L26] int buf ; [L27] int cb ; [L28] int blastFlag ; [L29] int tmp___1; [L31] s__state = 8466 [L32] blastFlag = 0 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND TRUE s__state == 8466 [L90] COND TRUE blastFlag == 0 [L91] blastFlag = 1 [L93] s__state = 8496 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND TRUE s__state == 8496 [L97] COND TRUE blastFlag == 1 [L98] blastFlag = 2 [L100] COND FALSE !(\read(s__hit)) [L103] s__state = 8512 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND FALSE !(s__state == 8496) [L48] COND TRUE s__state == 8512 [L108] s__state = 8528 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND FALSE !(s__state == 8496) [L48] COND FALSE !(s__state == 8512) [L52] COND TRUE s__state == 8528 [L112] s__state = 8544 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND FALSE !(s__state == 8496) [L48] COND FALSE !(s__state == 8512) [L52] COND FALSE !(s__state == 8528) [L56] COND TRUE s__state == 8544 [L116] COND TRUE s__verify_mode + 1 [L117] COND FALSE !(s__session__peer != 0) [L125] COND FALSE !(s__s3__tmp__new_cipher__algorithms + 256UL) [L133] s__state = 8576 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND FALSE !(s__state == 8496) [L48] COND FALSE !(s__state == 8512) [L52] COND FALSE !(s__state == 8528) [L56] COND FALSE !(s__state == 8544) [L60] COND FALSE !(s__state == 8560) [L64] COND TRUE s__state == 8576 Loop: [L146] tmp___1 = __VERIFIER_nondet_int() [L147] COND TRUE tmp___1 == 2 [L148] s__state = 8466 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND TRUE s__state == 8466 [L90] COND FALSE !(blastFlag == 0) [L93] s__state = 8496 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND TRUE s__state == 8496 [L97] COND FALSE !(blastFlag == 1) [L100] COND FALSE !(\read(s__hit)) [L103] s__state = 8512 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND FALSE !(s__state == 8496) [L48] COND TRUE s__state == 8512 [L108] s__state = 8528 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND FALSE !(s__state == 8496) [L48] COND FALSE !(s__state == 8512) [L52] COND TRUE s__state == 8528 [L112] s__state = 8544 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND FALSE !(s__state == 8496) [L48] COND FALSE !(s__state == 8512) [L52] COND FALSE !(s__state == 8528) [L56] COND TRUE s__state == 8544 [L116] COND TRUE s__verify_mode + 1 [L117] COND FALSE !(s__session__peer != 0) [L125] COND FALSE !(s__s3__tmp__new_cipher__algorithms + 256UL) [L133] s__state = 8576 [L34] COND TRUE 1 [L35] COND FALSE !(s__state <= 8512 && blastFlag > 2) [L41] COND FALSE !(s__state == 8466) [L44] COND FALSE !(s__state == 8496) [L48] COND FALSE !(s__state == 8512) [L52] COND FALSE !(s__state == 8528) [L56] COND FALSE !(s__state == 8544) [L60] COND FALSE !(s__state == 8560) [L64] COND TRUE s__state == 8576 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-20 07:03:17,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0e8d9fb-c2a6-41be-8e1b-5b821f8718aa/bin/uautomizer-DQz5hQGWxF/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)