./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strstr.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/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_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strstr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/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 64bit --witnessprinter.graph.data.programhash 4f0de1cabcaa1e7c1b5012604e9626b39d1f0fa44ba0399b8bd31764898831fc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:35:25,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:35:25,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:35:26,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:35:26,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:35:26,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:35:26,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:35:26,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:35:26,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:35:26,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:35:26,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:35:26,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:35:26,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:35:26,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:35:26,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:35:26,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:35:26,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:35:26,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:35:26,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:35:26,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:35:26,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:35:26,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:35:26,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:35:26,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:35:26,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:35:26,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:35:26,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:35:26,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:35:26,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:35:26,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:35:26,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:35:26,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:35:26,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:35:26,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:35:26,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:35:26,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:35:26,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:35:26,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:35:26,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:35:26,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:35:26,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:35:26,131 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 05:35:26,181 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:35:26,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:35:26,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:35:26,182 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:35:26,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:35:26,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:35:26,185 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:35:26,185 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 05:35:26,185 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 05:35:26,186 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 05:35:26,187 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 05:35:26,187 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 05:35:26,187 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 05:35:26,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:35:26,188 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:35:26,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:35:26,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:35:26,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 05:35:26,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 05:35:26,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 05:35:26,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:35:26,189 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 05:35:26,189 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:35:26,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 05:35:26,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:35:26,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:35:26,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:35:26,192 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:35:26,192 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:35:26,193 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 05:35:26,194 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_ca80d512-e928-4c3f-b3b2-ed12872be41a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0de1cabcaa1e7c1b5012604e9626b39d1f0fa44ba0399b8bd31764898831fc [2021-11-20 05:35:26,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:35:26,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:35:26,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:35:26,529 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:35:26,530 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:35:26,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-dietlibc/strstr.i [2021-11-20 05:35:26,622 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/data/bedf8c285/b2fbf2935a8b447091bfd67d3628bca4/FLAGc17b85794 [2021-11-20 05:35:27,179 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:35:27,180 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/sv-benchmarks/c/termination-dietlibc/strstr.i [2021-11-20 05:35:27,204 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/data/bedf8c285/b2fbf2935a8b447091bfd67d3628bca4/FLAGc17b85794 [2021-11-20 05:35:27,472 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/data/bedf8c285/b2fbf2935a8b447091bfd67d3628bca4 [2021-11-20 05:35:27,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:35:27,476 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:35:27,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:35:27,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:35:27,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:35:27,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:35:27" (1/1) ... [2021-11-20 05:35:27,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b5220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:27, skipping insertion in model container [2021-11-20 05:35:27,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:35:27" (1/1) ... [2021-11-20 05:35:27,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:35:27,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:35:27,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:35:27,857 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:35:27,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:35:27,968 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:35:27,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:27 WrapperNode [2021-11-20 05:35:27,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:35:27,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:35:27,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:35:27,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:35:27,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:27" (1/1) ... [2021-11-20 05:35:28,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:27" (1/1) ... [2021-11-20 05:35:28,050 INFO L137 Inliner]: procedures = 116, calls = 22, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 177 [2021-11-20 05:35:28,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:35:28,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:35:28,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:35:28,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:35:28,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:27" (1/1) ... [2021-11-20 05:35:28,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:27" (1/1) ... [2021-11-20 05:35:28,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:27" (1/1) ... [2021-11-20 05:35:28,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:27" (1/1) ... [2021-11-20 05:35:28,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:27" (1/1) ... [2021-11-20 05:35:28,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:27" (1/1) ... [2021-11-20 05:35:28,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:27" (1/1) ... [2021-11-20 05:35:28,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:35:28,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:35:28,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:35:28,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:35:28,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:27" (1/1) ... [2021-11-20 05:35:28,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:28,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:28,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:28,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 05:35:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 05:35:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 05:35:28,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 05:35:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 05:35:28,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:35:28,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:35:28,334 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:35:28,336 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:35:28,594 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:35:28,600 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:35:28,601 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-20 05:35:28,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:35:28 BoogieIcfgContainer [2021-11-20 05:35:28,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:35:28,604 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 05:35:28,604 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 05:35:28,607 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 05:35:28,608 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:35:28,608 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 05:35:27" (1/3) ... [2021-11-20 05:35:28,609 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d99f3da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:35:28, skipping insertion in model container [2021-11-20 05:35:28,609 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:35:28,610 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:35:27" (2/3) ... [2021-11-20 05:35:28,610 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d99f3da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:35:28, skipping insertion in model container [2021-11-20 05:35:28,610 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:35:28,610 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:35:28" (3/3) ... [2021-11-20 05:35:28,612 INFO L388 chiAutomizerObserver]: Analyzing ICFG strstr.i [2021-11-20 05:35:28,657 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 05:35:28,657 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 05:35:28,657 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 05:35:28,658 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 05:35:28,658 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 05:35:28,658 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 05:35:28,658 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 05:35:28,658 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 05:35:28,674 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 39 states, 38 states have (on average 1.5526315789473684) internal successors, (59), 38 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 05:35:28,697 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 19 [2021-11-20 05:35:28,697 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:35:28,697 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:35:28,703 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-20 05:35:28,704 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 05:35:28,704 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 05:35:28,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 39 states, 38 states have (on average 1.5526315789473684) internal successors, (59), 38 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 05:35:28,716 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 19 [2021-11-20 05:35:28,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:35:28,717 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:35:28,717 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-20 05:35:28,717 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 05:35:28,724 INFO L791 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 12#L542true assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 4#L544-3true [2021-11-20 05:35:28,725 INFO L793 eck$LassoCheckResult]: Loop: 4#L544-3true assume !!(main_~i~2#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet22#1, main_~hay~0#1.base, main_~hay~0#1.offset + main_~i~2#1, 1);havoc main_#t~nondet22#1; 5#L544-2true main_#t~post21#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post21#1;havoc main_#t~post21#1; 4#L544-3true [2021-11-20 05:35:28,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:28,731 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-11-20 05:35:28,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:28,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515113034] [2021-11-20 05:35:28,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:28,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:28,869 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:28,945 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:28,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:28,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2021-11-20 05:35:28,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:28,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104522858] [2021-11-20 05:35:28,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:28,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:28,974 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:28,998 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:29,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:29,028 INFO L85 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2021-11-20 05:35:29,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:29,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643565144] [2021-11-20 05:35:29,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:29,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:29,067 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:29,106 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:29,437 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:35:29,438 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:35:29,438 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:35:29,439 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:35:29,439 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 05:35:29,439 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:29,440 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:35:29,440 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:35:29,441 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration1_Lasso [2021-11-20 05:35:29,441 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:35:29,441 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:35:29,470 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 05:35:29,476 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 05:35:29,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:29,483 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 05:35:29,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:29,487 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 05:35:29,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:29,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:29,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:29,499 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 05:35:29,504 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 05:35:29,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:29,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:29,512 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 05:35:29,514 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 05:35:29,617 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 05:35:29,620 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 05:35:29,855 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:35:29,860 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 05:35:29,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:29,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:29,865 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:29,870 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 05:35:29,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:29,881 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:29,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:29,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:29,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:29,884 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:29,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:29,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 05:35:29,895 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:29,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:29,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:29,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:29,940 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:29,945 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 05:35:29,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:29,955 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:29,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:29,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:29,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:29,957 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:29,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:29,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 05:35:29,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:30,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:30,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:30,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:30,017 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:30,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 05:35:30,021 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 05:35:30,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:30,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:30,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:30,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:30,035 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:30,036 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:30,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:30,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:30,091 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:30,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:30,092 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:30,094 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 05:35:30,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:30,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:30,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:30,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:30,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:30,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:30,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:30,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 05:35:30,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:30,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:30,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:30,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:30,153 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:30,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 05:35:30,159 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 05:35:30,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:30,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:30,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:30,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:30,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:30,174 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:30,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:30,190 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:30,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:30,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:30,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:30,231 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:30,236 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 05:35:30,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:30,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:30,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:30,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:30,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:30,247 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:30,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:30,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 05:35:30,270 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:30,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:30,309 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:30,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:30,311 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:30,317 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 05:35:30,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:30,329 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:30,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:30,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:30,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:30,330 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:30,330 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:30,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 05:35:30,342 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:30,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:30,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:30,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:30,383 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:30,389 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 05:35:30,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:30,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:30,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:30,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:30,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:30,400 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:30,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:30,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 05:35:30,418 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:30,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-11-20 05:35:30,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:30,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:30,446 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:30,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 05:35:30,450 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 05:35:30,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:30,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:30,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:30,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:30,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:30,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:30,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:30,490 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:30,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:30,518 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:30,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:30,519 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:30,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-20 05:35:30,523 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 05:35:30,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:30,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:30,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:30,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:30,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:30,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:30,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:30,546 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:30,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:30,569 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:30,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:30,571 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:30,579 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 05:35:30,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:30,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:30,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:30,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:30,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:30,596 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:30,596 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:30,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-20 05:35:30,618 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:30,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:30,654 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:30,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:30,659 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:30,667 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 05:35:30,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:30,676 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:30,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:30,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:30,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:30,678 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:30,678 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:30,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-20 05:35:30,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:30,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-11-20 05:35:30,709 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:30,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:30,710 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:30,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-20 05:35:30,714 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 05:35:30,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:30,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:30,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:30,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:30,725 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:30,725 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:30,754 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:30,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:30,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:30,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:30,782 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:30,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-20 05:35:30,783 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 05:35:30,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:30,790 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:30,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:30,790 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:30,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:30,791 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:30,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:30,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:30,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:30,813 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:30,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:30,814 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:30,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-20 05:35:30,817 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 05:35:30,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:30,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:30,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:30,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:30,831 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:30,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:30,848 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:30,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:30,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:30,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:30,886 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:30,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-20 05:35:30,895 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 05:35:30,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:30,908 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:30,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:30,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:30,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:30,909 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:30,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:30,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:30,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:30,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:30,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:30,954 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:30,963 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 05:35:30,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:30,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:30,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:30,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:30,979 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:30,979 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:30,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-20 05:35:31,004 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:31,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-11-20 05:35:31,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:31,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:31,033 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:31,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-20 05:35:31,038 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 05:35:31,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:31,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:31,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:31,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:31,054 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:31,055 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:31,079 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 05:35:31,111 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-11-20 05:35:31,112 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-11-20 05:35:31,113 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:31,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:31,127 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:31,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-20 05:35:31,189 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 05:35:31,223 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 05:35:31,223 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 05:35:31,224 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~2#1, ULTIMATE.start_main_~in_len~0#1) = -1*ULTIMATE.start_main_~i~2#1 + 1*ULTIMATE.start_main_~in_len~0#1 Supporting invariants [] [2021-11-20 05:35:31,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:31,307 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-11-20 05:35:31,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:31,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:35:31,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:31,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:35:31,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:31,407 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 05:35:31,447 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 05:35:31,449 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 39 states, 38 states have (on average 1.5526315789473684) internal successors, (59), 38 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:35:31,545 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 39 states, 38 states have (on average 1.5526315789473684) internal successors, (59), 38 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). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 112 states and 165 transitions. Complement of second has 7 states. [2021-11-20 05:35:31,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-20 05:35:31,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:35:31,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 112 transitions. [2021-11-20 05:35:31,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 112 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-20 05:35:31,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:31,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 112 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-20 05:35:31,561 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:31,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 112 transitions. Stem has 3 letters. Loop has 4 letters. [2021-11-20 05:35:31,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:31,565 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 165 transitions. [2021-11-20 05:35:31,587 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 17 [2021-11-20 05:35:31,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 34 states and 44 transitions. [2021-11-20 05:35:31,592 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-11-20 05:35:31,592 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-11-20 05:35:31,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 44 transitions. [2021-11-20 05:35:31,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:35:31,593 INFO L681 BuchiCegarLoop]: Abstraction has 34 states and 44 transitions. [2021-11-20 05:35:31,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 44 transitions. [2021-11-20 05:35:31,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-11-20 05:35:31,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 33 states have internal predecessors, (44), 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 05:35:31,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2021-11-20 05:35:31,618 INFO L704 BuchiCegarLoop]: Abstraction has 34 states and 44 transitions. [2021-11-20 05:35:31,618 INFO L587 BuchiCegarLoop]: Abstraction has 34 states and 44 transitions. [2021-11-20 05:35:31,618 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 05:35:31,618 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 44 transitions. [2021-11-20 05:35:31,619 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 17 [2021-11-20 05:35:31,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:35:31,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:35:31,620 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-20 05:35:31,620 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 05:35:31,620 INFO L791 eck$LassoCheckResult]: Stem: 235#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 216#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 217#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 205#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 206#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 215#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 209#L552-3 [2021-11-20 05:35:31,620 INFO L793 eck$LassoCheckResult]: Loop: 209#L552-3 assume !!(main_~i~3#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet26#1, main_~needle~0#1.base, main_~needle~0#1.offset + main_~i~3#1, 1);havoc main_#t~nondet26#1; 211#L552-2 main_#t~post25#1 := main_~i~3#1;main_~i~3#1 := 1 + main_#t~post25#1;havoc main_#t~post25#1; 209#L552-3 [2021-11-20 05:35:31,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:31,621 INFO L85 PathProgramCache]: Analyzing trace with hash 889572430, now seen corresponding path program 1 times [2021-11-20 05:35:31,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:31,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557499835] [2021-11-20 05:35:31,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:31,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:31,635 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:31,652 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:31,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:31,653 INFO L85 PathProgramCache]: Analyzing trace with hash 2051, now seen corresponding path program 1 times [2021-11-20 05:35:31,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:31,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916954896] [2021-11-20 05:35:31,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:31,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:31,659 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:31,665 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:31,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:31,666 INFO L85 PathProgramCache]: Analyzing trace with hash 180614416, now seen corresponding path program 1 times [2021-11-20 05:35:31,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:31,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214258391] [2021-11-20 05:35:31,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:31,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:31,682 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:31,711 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:32,229 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:35:32,230 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:35:32,230 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:35:32,230 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:35:32,230 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 05:35:32,230 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:32,230 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:35:32,230 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:35:32,230 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration2_Lasso [2021-11-20 05:35:32,230 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:35:32,230 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:35:32,234 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 05:35:32,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:32,421 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 05:35:32,423 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 05:35:32,426 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 05:35:32,428 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 05:35:32,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:32,432 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 05:35:32,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:32,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:32,438 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 05:35:32,440 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 05:35:32,710 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:35:32,710 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 05:35:32,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:32,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:32,714 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:32,722 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 05:35:32,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:32,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:32,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:32,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:32,734 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:32,734 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:32,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-20 05:35:32,750 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:32,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:32,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:32,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:32,787 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:32,790 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 05:35:32,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:32,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:32,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:32,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:32,803 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:32,803 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:32,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-20 05:35:32,818 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:32,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:32,854 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:32,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:32,855 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:32,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 05:35:32,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:32,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:32,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:32,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:32,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:32,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:32,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:32,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-20 05:35:32,878 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:32,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:32,914 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:32,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:32,916 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:32,919 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 05:35:32,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:32,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:32,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:32,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:32,940 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:32,941 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:32,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-20 05:35:32,958 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 05:35:33,001 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2021-11-20 05:35:33,001 INFO L444 ModelExtractionUtils]: 7 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-11-20 05:35:33,001 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:33,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:33,003 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:33,005 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 05:35:33,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-20 05:35:33,021 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 05:35:33,021 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 05:35:33,021 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~out_len~0#1, ULTIMATE.start_main_~i~3#1) = 1*ULTIMATE.start_main_~out_len~0#1 - 1*ULTIMATE.start_main_~i~3#1 Supporting invariants [] [2021-11-20 05:35:33,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:33,078 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2021-11-20 05:35:33,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:33,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:35:33,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:33,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:35:33,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:33,154 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 05:35:33,156 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 05:35:33,156 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 44 transitions. cyclomatic complexity: 15 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 05:35:33,192 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 44 transitions. cyclomatic complexity: 15. 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) Result 60 states and 81 transitions. Complement of second has 6 states. [2021-11-20 05:35:33,194 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 05:35:33,200 INFO L82 GeneralOperation]: Start removeUnreachable. 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 05:35:33,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 42 transitions. [2021-11-20 05:35:33,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 42 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-20 05:35:33,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:33,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 42 transitions. Stem has 8 letters. Loop has 2 letters. [2021-11-20 05:35:33,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:33,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 42 transitions. Stem has 6 letters. Loop has 4 letters. [2021-11-20 05:35:33,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:33,202 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 81 transitions. [2021-11-20 05:35:33,204 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-11-20 05:35:33,208 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 35 states and 46 transitions. [2021-11-20 05:35:33,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-11-20 05:35:33,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-11-20 05:35:33,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 46 transitions. [2021-11-20 05:35:33,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:35:33,209 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 46 transitions. [2021-11-20 05:35:33,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 46 transitions. [2021-11-20 05:35:33,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-20 05:35:33,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 34 states have internal predecessors, (46), 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 05:35:33,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 46 transitions. [2021-11-20 05:35:33,217 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 46 transitions. [2021-11-20 05:35:33,217 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 46 transitions. [2021-11-20 05:35:33,217 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-20 05:35:33,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 46 transitions. [2021-11-20 05:35:33,218 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-11-20 05:35:33,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:35:33,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:35:33,220 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:35:33,221 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 05:35:33,221 INFO L791 eck$LassoCheckResult]: Stem: 413#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 396#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 397#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 382#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 383#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 393#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 386#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 387#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 390#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 398#L510-4 [2021-11-20 05:35:33,221 INFO L793 eck$LassoCheckResult]: Loop: 398#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 399#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 407#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 398#L510-4 [2021-11-20 05:35:33,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:33,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1304077847, now seen corresponding path program 1 times [2021-11-20 05:35:33,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:33,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316459065] [2021-11-20 05:35:33,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:33,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:33,265 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:33,295 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:33,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:33,295 INFO L85 PathProgramCache]: Analyzing trace with hash 78610, now seen corresponding path program 1 times [2021-11-20 05:35:33,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:33,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277972126] [2021-11-20 05:35:33,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:33,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:33,301 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:33,306 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:33,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:33,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1803996476, now seen corresponding path program 1 times [2021-11-20 05:35:33,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:33,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24767415] [2021-11-20 05:35:33,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:33,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:33,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:33,528 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 05:35:33,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:35:33,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24767415] [2021-11-20 05:35:33,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24767415] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:35:33,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:35:33,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:35:33,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099165390] [2021-11-20 05:35:33,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:35:33,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:35:33,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:35:33,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:35:33,600 INFO L87 Difference]: Start difference. First operand 35 states and 46 transitions. cyclomatic complexity: 16 Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 05:35:33,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:35:33,758 INFO L93 Difference]: Finished difference Result 59 states and 76 transitions. [2021-11-20 05:35:33,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:35:33,760 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 76 transitions. [2021-11-20 05:35:33,763 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 27 [2021-11-20 05:35:33,765 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 59 states and 76 transitions. [2021-11-20 05:35:33,765 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2021-11-20 05:35:33,768 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-11-20 05:35:33,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 76 transitions. [2021-11-20 05:35:33,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:35:33,769 INFO L681 BuchiCegarLoop]: Abstraction has 59 states and 76 transitions. [2021-11-20 05:35:33,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 76 transitions. [2021-11-20 05:35:33,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 39. [2021-11-20 05:35:33,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 38 states have internal predecessors, (51), 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 05:35:33,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2021-11-20 05:35:33,779 INFO L704 BuchiCegarLoop]: Abstraction has 39 states and 51 transitions. [2021-11-20 05:35:33,779 INFO L587 BuchiCegarLoop]: Abstraction has 39 states and 51 transitions. [2021-11-20 05:35:33,779 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-20 05:35:33,779 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 51 transitions. [2021-11-20 05:35:33,786 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-11-20 05:35:33,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:35:33,786 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:35:33,787 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:35:33,787 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 05:35:33,788 INFO L791 eck$LassoCheckResult]: Stem: 525#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 506#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 507#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 493#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 494#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 505#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 497#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 498#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 531#L509 assume strlen_~s#1.base == 0 && strlen_~s#1.offset == 0;strlen_#res#1 := 0; 503#L511 strstr_#t~ret11#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~nl~0#1 := strstr_#t~ret11#1;havoc strstr_#t~ret11#1;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~haystack#1.base, strstr_~haystack#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 504#L509-2 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 513#L510-10 [2021-11-20 05:35:33,789 INFO L793 eck$LassoCheckResult]: Loop: 513#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 514#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 516#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 513#L510-10 [2021-11-20 05:35:33,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:33,789 INFO L85 PathProgramCache]: Analyzing trace with hash -911639398, now seen corresponding path program 1 times [2021-11-20 05:35:33,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:33,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218111213] [2021-11-20 05:35:33,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:33,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:33,861 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 05:35:33,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:35:33,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218111213] [2021-11-20 05:35:33,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218111213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:35:33,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:35:33,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:35:33,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307234085] [2021-11-20 05:35:33,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:35:33,864 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 05:35:33,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:33,865 INFO L85 PathProgramCache]: Analyzing trace with hash 100456, now seen corresponding path program 1 times [2021-11-20 05:35:33,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:33,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882707943] [2021-11-20 05:35:33,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:33,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:33,873 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:33,881 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:33,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:35:33,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:35:33,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:35:33,936 INFO L87 Difference]: Start difference. First operand 39 states and 51 transitions. cyclomatic complexity: 17 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 05:35:33,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:35:33,972 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2021-11-20 05:35:33,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:35:33,975 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 49 transitions. [2021-11-20 05:35:33,979 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-11-20 05:35:33,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 49 transitions. [2021-11-20 05:35:33,980 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2021-11-20 05:35:33,980 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-11-20 05:35:33,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 49 transitions. [2021-11-20 05:35:33,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:35:33,982 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 49 transitions. [2021-11-20 05:35:33,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 49 transitions. [2021-11-20 05:35:33,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-20 05:35:33,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 38 states have internal predecessors, (49), 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 05:35:33,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2021-11-20 05:35:33,989 INFO L704 BuchiCegarLoop]: Abstraction has 39 states and 49 transitions. [2021-11-20 05:35:33,989 INFO L587 BuchiCegarLoop]: Abstraction has 39 states and 49 transitions. [2021-11-20 05:35:33,989 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-20 05:35:33,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 49 transitions. [2021-11-20 05:35:33,990 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-11-20 05:35:33,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:35:33,991 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:35:33,991 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:35:33,991 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 05:35:33,993 INFO L791 eck$LassoCheckResult]: Stem: 612#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 593#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 594#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 580#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 581#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 592#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 584#L552-3 assume !!(main_~i~3#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet26#1, main_~needle~0#1.base, main_~needle~0#1.offset + main_~i~3#1, 1);havoc main_#t~nondet26#1; 586#L552-2 main_#t~post25#1 := main_~i~3#1;main_~i~3#1 := 1 + main_#t~post25#1;havoc main_#t~post25#1; 587#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 588#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 589#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 597#L510-4 [2021-11-20 05:35:33,993 INFO L793 eck$LassoCheckResult]: Loop: 597#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 598#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 606#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 597#L510-4 [2021-11-20 05:35:33,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:33,994 INFO L85 PathProgramCache]: Analyzing trace with hash -909922795, now seen corresponding path program 1 times [2021-11-20 05:35:33,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:33,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712359874] [2021-11-20 05:35:33,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:33,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:34,033 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:34,049 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:34,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:34,050 INFO L85 PathProgramCache]: Analyzing trace with hash 78610, now seen corresponding path program 2 times [2021-11-20 05:35:34,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:34,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349866321] [2021-11-20 05:35:34,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:34,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:34,060 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:34,064 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:34,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:34,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1971331970, now seen corresponding path program 1 times [2021-11-20 05:35:34,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:34,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780398791] [2021-11-20 05:35:34,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:34,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:34,102 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:34,135 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:34,984 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:35:34,984 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:35:34,984 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:35:34,984 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:35:34,984 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 05:35:34,985 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:34,985 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:35:34,985 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:35:34,985 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration5_Lasso [2021-11-20 05:35:34,985 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:35:34,985 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:35:34,990 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 05:35:34,993 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 05:35:34,995 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 05:35:34,997 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 05:35:34,999 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 05:35:35,001 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 05:35:35,280 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 05:35:35,282 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 05:35:35,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:35,287 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 05:35:35,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:35,291 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 05:35:35,292 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 05:35:35,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:35,296 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 05:35:35,298 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 05:35:35,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:35,302 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 05:35:35,306 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 05:35:35,308 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 05:35:35,312 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 05:35:35,313 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 05:35:35,317 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 05:35:35,318 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 05:35:35,321 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 05:35:35,323 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 05:35:35,325 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 05:35:35,326 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 05:35:35,328 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 05:35:35,330 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 05:35:35,331 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 05:35:35,333 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 05:35:35,799 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:35:35,799 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 05:35:35,800 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:35,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:35,809 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:35,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-20 05:35:35,815 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 05:35:35,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:35,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:35,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:35,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:35,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:35,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:35,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:35,825 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:35,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:35,850 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:35,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:35,850 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:35,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-20 05:35:35,852 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 05:35:35,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:35,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:35,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:35,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:35,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:35,860 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:35,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:35,861 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:35,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-11-20 05:35:35,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:35,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:35,884 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:35,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-20 05:35:35,887 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 05:35:35,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:35,894 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:35,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:35,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:35,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:35,894 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:35,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:35,895 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:35,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:35,915 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:35,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:35,916 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:35,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-20 05:35:35,920 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 05:35:35,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:35,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:35,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:35,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:35,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:35,930 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:35,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:35,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:35,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:35,951 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:35,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:35,958 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:35,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-20 05:35:35,959 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 05:35:35,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:35,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:35,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:35,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:35,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:35,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:35,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:35,994 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:36,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:36,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:36,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:36,039 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:36,043 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 05:35:36,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:36,052 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:36,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:36,053 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-20 05:35:36,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:36,053 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-20 05:35:36,054 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:36,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-20 05:35:36,066 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:36,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-11-20 05:35:36,090 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:36,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:36,091 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:36,093 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 05:35:36,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-20 05:35:36,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:36,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:36,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:36,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:36,107 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:36,107 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:36,130 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:36,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:36,163 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:36,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:36,167 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:36,171 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 05:35:36,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:36,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:36,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:36,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:36,182 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:36,182 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:36,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-20 05:35:36,192 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:36,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:36,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:36,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:36,213 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:36,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-20 05:35:36,214 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 05:35:36,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:36,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:36,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:36,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:36,223 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:36,223 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:36,262 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:36,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:36,299 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:36,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:36,300 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:36,304 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 05:35:36,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:36,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:36,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:36,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:36,316 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:36,316 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:36,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-20 05:35:36,346 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:36,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-11-20 05:35:36,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:36,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:36,373 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:36,375 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 05:35:36,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-20 05:35:36,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:36,383 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:36,383 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:36,383 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:36,386 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:36,386 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:36,410 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:36,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:36,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:36,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:36,447 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:36,451 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 05:35:36,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:36,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:36,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:36,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:36,462 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:36,463 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:36,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-20 05:35:36,482 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:36,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-11-20 05:35:36,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:36,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:36,506 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:36,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-20 05:35:36,512 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 05:35:36,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:36,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:36,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:36,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:36,535 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:36,536 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:36,562 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 05:35:36,590 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-11-20 05:35:36,590 INFO L444 ModelExtractionUtils]: 35 out of 43 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-11-20 05:35:36,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:36,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:36,593 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:36,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-11-20 05:35:36,603 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 05:35:36,640 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 05:35:36,640 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 05:35:36,640 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_strlen_~s#1.base)_1, ULTIMATE.start_strlen_~s#1.offset) = 1*v_rep(select #length ULTIMATE.start_strlen_~s#1.base)_1 - 1*ULTIMATE.start_strlen_~s#1.offset Supporting invariants [] [2021-11-20 05:35:36,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:36,701 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-11-20 05:35:36,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:36,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:35:36,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:36,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:36,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 05:35:36,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:36,793 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 05:35:36,793 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 05:35:36,793 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 49 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 05:35:36,806 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 49 transitions. cyclomatic complexity: 15. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 57 transitions. Complement of second has 5 states. [2021-11-20 05:35:36,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 05:35:36,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 05:35:36,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2021-11-20 05:35:36,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 3 letters. [2021-11-20 05:35:36,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:36,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 14 letters. Loop has 3 letters. [2021-11-20 05:35:36,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:36,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 6 letters. [2021-11-20 05:35:36,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:36,810 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 57 transitions. [2021-11-20 05:35:36,811 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-11-20 05:35:36,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 41 states and 52 transitions. [2021-11-20 05:35:36,812 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2021-11-20 05:35:36,812 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2021-11-20 05:35:36,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 52 transitions. [2021-11-20 05:35:36,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:35:36,812 INFO L681 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2021-11-20 05:35:36,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 52 transitions. [2021-11-20 05:35:36,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2021-11-20 05:35:36,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.275) internal successors, (51), 39 states have internal predecessors, (51), 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 05:35:36,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2021-11-20 05:35:36,815 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-11-20 05:35:36,815 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-11-20 05:35:36,816 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-20 05:35:36,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 51 transitions. [2021-11-20 05:35:36,816 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-11-20 05:35:36,816 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:35:36,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:35:36,817 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:35:36,817 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 05:35:36,818 INFO L791 eck$LassoCheckResult]: Stem: 789#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 771#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 768#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 755#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 756#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 767#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 759#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 760#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 764#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 772#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 773#L510-1 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 791#L510-5 strlen_#res#1 := strlen_~i~0#1; 765#L511 strstr_#t~ret11#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~nl~0#1 := strstr_#t~ret11#1;havoc strstr_#t~ret11#1;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~haystack#1.base, strstr_~haystack#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 766#L509-2 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 777#L510-10 [2021-11-20 05:35:36,818 INFO L793 eck$LassoCheckResult]: Loop: 777#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 778#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 780#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 777#L510-10 [2021-11-20 05:35:36,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:36,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1526227897, now seen corresponding path program 1 times [2021-11-20 05:35:36,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:36,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781968075] [2021-11-20 05:35:36,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:36,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:36,830 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:36,844 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:36,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:36,845 INFO L85 PathProgramCache]: Analyzing trace with hash 100456, now seen corresponding path program 2 times [2021-11-20 05:35:36,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:36,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309745559] [2021-11-20 05:35:36,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:36,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:36,849 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:36,852 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:36,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:36,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1331413406, now seen corresponding path program 1 times [2021-11-20 05:35:36,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:36,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515957582] [2021-11-20 05:35:36,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:36,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:37,016 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 05:35:37,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:35:37,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515957582] [2021-11-20 05:35:37,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515957582] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:35:37,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:35:37,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 05:35:37,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51618073] [2021-11-20 05:35:37,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:35:37,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:35:37,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:35:37,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:35:37,072 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. cyclomatic complexity: 16 Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:35:37,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:37,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:35:37,409 INFO L93 Difference]: Finished difference Result 82 states and 104 transitions. [2021-11-20 05:35:37,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 05:35:37,411 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 104 transitions. [2021-11-20 05:35:37,412 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 24 [2021-11-20 05:35:37,413 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 82 states and 104 transitions. [2021-11-20 05:35:37,414 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2021-11-20 05:35:37,414 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 69 [2021-11-20 05:35:37,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 104 transitions. [2021-11-20 05:35:37,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:35:37,415 INFO L681 BuchiCegarLoop]: Abstraction has 82 states and 104 transitions. [2021-11-20 05:35:37,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 104 transitions. [2021-11-20 05:35:37,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 60. [2021-11-20 05:35:37,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 59 states have internal predecessors, (76), 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 05:35:37,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 76 transitions. [2021-11-20 05:35:37,419 INFO L704 BuchiCegarLoop]: Abstraction has 60 states and 76 transitions. [2021-11-20 05:35:37,419 INFO L587 BuchiCegarLoop]: Abstraction has 60 states and 76 transitions. [2021-11-20 05:35:37,420 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-20 05:35:37,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 76 transitions. [2021-11-20 05:35:37,420 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-11-20 05:35:37,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:35:37,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:35:37,421 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:35:37,422 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 05:35:37,422 INFO L791 eck$LassoCheckResult]: Stem: 938#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 917#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 918#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 903#L544-3 assume !!(main_~i~2#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet22#1, main_~hay~0#1.base, main_~hay~0#1.offset + main_~i~2#1, 1);havoc main_#t~nondet22#1; 905#L544-2 main_#t~post21#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post21#1;havoc main_#t~post21#1; 906#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 907#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 960#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 908#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 909#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 913#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 921#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 922#L510-1 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 944#L510-5 strlen_#res#1 := strlen_~i~0#1; 914#L511 strstr_#t~ret11#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~nl~0#1 := strstr_#t~ret11#1;havoc strstr_#t~ret11#1;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~haystack#1.base, strstr_~haystack#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 915#L509-2 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 926#L510-10 [2021-11-20 05:35:37,422 INFO L793 eck$LassoCheckResult]: Loop: 926#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 927#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 940#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 926#L510-10 [2021-11-20 05:35:37,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:37,423 INFO L85 PathProgramCache]: Analyzing trace with hash -432721371, now seen corresponding path program 1 times [2021-11-20 05:35:37,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:37,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958172781] [2021-11-20 05:35:37,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:37,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:37,434 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:37,449 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:37,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:37,449 INFO L85 PathProgramCache]: Analyzing trace with hash 100456, now seen corresponding path program 3 times [2021-11-20 05:35:37,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:37,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971192973] [2021-11-20 05:35:37,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:37,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:37,453 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:37,457 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:37,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:37,457 INFO L85 PathProgramCache]: Analyzing trace with hash -2005437500, now seen corresponding path program 1 times [2021-11-20 05:35:37,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:37,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262200958] [2021-11-20 05:35:37,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:37,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:37,470 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:37,488 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:38,481 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:35:38,481 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:35:38,481 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:35:38,481 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:35:38,481 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 05:35:38,481 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:38,481 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:35:38,481 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:35:38,481 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration7_Lasso [2021-11-20 05:35:38,481 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:35:38,481 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:35:38,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:38,487 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 05:35:38,489 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 05:35:38,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:38,496 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 05:35:38,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:38,499 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 05:35:38,501 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 05:35:38,502 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 05:35:38,507 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 05:35:38,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:38,510 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 05:35:38,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:38,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:38,515 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 05:35:38,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:38,520 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 05:35:38,522 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 05:35:38,523 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 05:35:38,526 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 05:35:38,527 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 05:35:38,529 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 05:35:38,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:38,844 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 05:35:38,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:38,847 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 05:35:38,850 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 05:35:38,856 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 05:35:38,858 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 05:35:38,860 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 05:35:38,862 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 05:35:38,864 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 05:35:39,278 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:35:39,278 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 05:35:39,279 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,281 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-11-20 05:35:39,283 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 05:35:39,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,290 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:39,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,291 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:39,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:39,292 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:39,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,312 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-11-20 05:35:39,314 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 05:35:39,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:39,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:39,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:39,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:39,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,347 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-11-20 05:35:39,348 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 05:35:39,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:39,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:39,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:39,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-11-20 05:35:39,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,378 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-11-20 05:35:39,381 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 05:35:39,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,389 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:39,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:39,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:39,390 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:39,410 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,410 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-11-20 05:35:39,411 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 05:35:39,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:39,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:39,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:39,421 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:39,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,441 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-11-20 05:35:39,444 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 05:35:39,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,453 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:39,453 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:39,455 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-11-20 05:35:39,475 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,475 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-11-20 05:35:39,477 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 05:35:39,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:39,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,485 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:39,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:39,486 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-11-20 05:35:39,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,506 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-11-20 05:35:39,510 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 05:35:39,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:39,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,520 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:39,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:39,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-11-20 05:35:39,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,541 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-11-20 05:35:39,543 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 05:35:39,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:39,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,551 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:39,551 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:39,552 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-11-20 05:35:39,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,572 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-11-20 05:35:39,573 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 05:35:39,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:39,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:39,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:39,582 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:39,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,603 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-11-20 05:35:39,616 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 05:35:39,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,623 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:39,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:39,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:39,645 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-11-20 05:35:39,666 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,667 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-11-20 05:35:39,668 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 05:35:39,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:39,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,676 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:39,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:39,677 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-11-20 05:35:39,697 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,698 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,731 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 05:35:39,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,741 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:39,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,742 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:39,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:39,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-11-20 05:35:39,750 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:39,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,788 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,791 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 05:35:39,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:39,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,801 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:39,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:39,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-11-20 05:35:39,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-11-20 05:35:39,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,824 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-11-20 05:35:39,825 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 05:35:39,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:39,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:39,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:39,834 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-11-20 05:35:39,854 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,854 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-11-20 05:35:39,856 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 05:35:39,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,864 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:39,864 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:39,866 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-11-20 05:35:39,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,888 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-11-20 05:35:39,889 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 05:35:39,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,897 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:39,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,897 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:39,897 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:39,898 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:39,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,918 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-11-20 05:35:39,920 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 05:35:39,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:39,928 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:39,930 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-11-20 05:35:39,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,951 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-11-20 05:35:39,952 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 05:35:39,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:39,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:39,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:39,960 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:39,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-11-20 05:35:39,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:39,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:39,980 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:39,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-11-20 05:35:39,981 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 05:35:39,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:39,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:39,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:39,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:39,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:39,989 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:39,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:39,990 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:40,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-11-20 05:35:40,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:40,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:40,010 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:40,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-11-20 05:35:40,011 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 05:35:40,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:40,018 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:40,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:40,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:40,018 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:40,019 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:40,019 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:40,020 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:40,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-11-20 05:35:40,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:40,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:40,039 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:40,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-11-20 05:35:40,041 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 05:35:40,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:40,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:40,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:40,049 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-20 05:35:40,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:40,049 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-20 05:35:40,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:40,064 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:40,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-11-20 05:35:40,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:40,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:40,084 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:40,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-11-20 05:35:40,085 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 05:35:40,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:40,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:40,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:40,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:40,112 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:40,112 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:40,121 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:40,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:40,140 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:40,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:40,141 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:40,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-11-20 05:35:40,143 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 05:35:40,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:40,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:40,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:40,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:40,163 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:40,163 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:40,179 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 05:35:40,243 INFO L443 ModelExtractionUtils]: Simplification made 27 calls to the SMT solver. [2021-11-20 05:35:40,243 INFO L444 ModelExtractionUtils]: 12 out of 52 variables were initially zero. Simplification set additionally 37 variables to zero. [2021-11-20 05:35:40,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:40,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:40,244 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:40,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-11-20 05:35:40,245 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 05:35:40,253 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 05:35:40,253 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 05:35:40,253 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strlen_~s#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc20#1.base)_4) = -1*ULTIMATE.start_strlen_~s#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc20#1.base)_4 Supporting invariants [] [2021-11-20 05:35:40,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-11-20 05:35:40,294 INFO L297 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2021-11-20 05:35:40,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:40,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 05:35:40,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:40,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:35:40,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:40,503 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 05:35:40,504 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2021-11-20 05:35:40,504 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 76 transitions. cyclomatic complexity: 23 Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:35:40,599 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 76 transitions. cyclomatic complexity: 23. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 89 states and 114 transitions. Complement of second has 7 states. [2021-11-20 05:35:40,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 4 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 05:35:40,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:35:40,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2021-11-20 05:35:40,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 56 transitions. Stem has 16 letters. Loop has 3 letters. [2021-11-20 05:35:40,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:40,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 56 transitions. Stem has 19 letters. Loop has 3 letters. [2021-11-20 05:35:40,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:40,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 56 transitions. Stem has 16 letters. Loop has 6 letters. [2021-11-20 05:35:40,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:40,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 114 transitions. [2021-11-20 05:35:40,603 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-11-20 05:35:40,604 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 74 states and 94 transitions. [2021-11-20 05:35:40,604 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2021-11-20 05:35:40,604 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2021-11-20 05:35:40,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 94 transitions. [2021-11-20 05:35:40,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:35:40,605 INFO L681 BuchiCegarLoop]: Abstraction has 74 states and 94 transitions. [2021-11-20 05:35:40,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 94 transitions. [2021-11-20 05:35:40,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 61. [2021-11-20 05:35:40,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.278688524590164) internal successors, (78), 60 states have internal predecessors, (78), 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 05:35:40,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 78 transitions. [2021-11-20 05:35:40,608 INFO L704 BuchiCegarLoop]: Abstraction has 61 states and 78 transitions. [2021-11-20 05:35:40,608 INFO L587 BuchiCegarLoop]: Abstraction has 61 states and 78 transitions. [2021-11-20 05:35:40,608 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-20 05:35:40,608 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 78 transitions. [2021-11-20 05:35:40,609 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-20 05:35:40,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:35:40,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:35:40,610 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:35:40,610 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-20 05:35:40,610 INFO L791 eck$LassoCheckResult]: Stem: 1221#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1200#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 1201#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 1184#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 1185#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 1197#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 1189#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 1190#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 1194#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 1202#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 1203#L510-1 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 1223#L510-5 strlen_#res#1 := strlen_~i~0#1; 1195#L511 strstr_#t~ret11#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~nl~0#1 := strstr_#t~ret11#1;havoc strstr_#t~ret11#1;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~haystack#1.base, strstr_~haystack#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 1196#L509-2 assume strlen_~s#1.base == 0 && strlen_~s#1.offset == 0;strlen_#res#1 := 0; 1216#L511-1 strstr_#t~ret12#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~hl~0#1 := strstr_#t~ret12#1;havoc strstr_#t~ret12#1;havoc strstr_~i~1#1; 1206#L530 assume !(0 == strstr_~nl~0#1 % 18446744073709551616); 1198#L531 assume !(strstr_~nl~0#1 % 18446744073709551616 > strstr_~hl~0#1 % 18446744073709551616);strstr_~i~1#1 := 1 + (strstr_~hl~0#1 - strstr_~nl~0#1); 1199#L532-3 [2021-11-20 05:35:40,610 INFO L793 eck$LassoCheckResult]: Loop: 1199#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 1222#L533 assume !strstr_#t~short17#1; 1219#L533-2 assume !strstr_#t~short17#1;havoc strstr_#t~mem14#1;havoc strstr_#t~mem15#1;havoc strstr_#t~ret16#1;havoc strstr_#t~short17#1;strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;havoc strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset; 1220#L532-2 strstr_#t~pre13#1 := strstr_~i~1#1 - 1;strstr_~i~1#1 := strstr_~i~1#1 - 1;havoc strstr_#t~pre13#1; 1199#L532-3 [2021-11-20 05:35:40,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:40,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1331460076, now seen corresponding path program 1 times [2021-11-20 05:35:40,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:40,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578171729] [2021-11-20 05:35:40,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:40,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:40,667 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 05:35:40,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:35:40,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578171729] [2021-11-20 05:35:40,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578171729] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:35:40,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:35:40,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:35:40,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411890981] [2021-11-20 05:35:40,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:35:40,669 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 05:35:40,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:40,669 INFO L85 PathProgramCache]: Analyzing trace with hash 4089565, now seen corresponding path program 1 times [2021-11-20 05:35:40,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:40,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719413200] [2021-11-20 05:35:40,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:40,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:40,675 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:40,681 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:40,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:35:40,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:35:40,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:35:40,823 INFO L87 Difference]: Start difference. First operand 61 states and 78 transitions. cyclomatic complexity: 24 Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:35:40,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:35:40,863 INFO L93 Difference]: Finished difference Result 61 states and 76 transitions. [2021-11-20 05:35:40,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:35:40,864 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 76 transitions. [2021-11-20 05:35:40,865 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-20 05:35:40,866 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 61 states and 76 transitions. [2021-11-20 05:35:40,866 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2021-11-20 05:35:40,866 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2021-11-20 05:35:40,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 76 transitions. [2021-11-20 05:35:40,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:35:40,867 INFO L681 BuchiCegarLoop]: Abstraction has 61 states and 76 transitions. [2021-11-20 05:35:40,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 76 transitions. [2021-11-20 05:35:40,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-11-20 05:35:40,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 60 states have internal predecessors, (76), 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 05:35:40,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2021-11-20 05:35:40,870 INFO L704 BuchiCegarLoop]: Abstraction has 61 states and 76 transitions. [2021-11-20 05:35:40,870 INFO L587 BuchiCegarLoop]: Abstraction has 61 states and 76 transitions. [2021-11-20 05:35:40,870 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-11-20 05:35:40,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 76 transitions. [2021-11-20 05:35:40,871 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-20 05:35:40,871 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:35:40,871 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:35:40,872 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:35:40,872 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-20 05:35:40,872 INFO L791 eck$LassoCheckResult]: Stem: 1358#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1337#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 1338#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 1321#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 1322#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 1334#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 1326#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 1327#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 1331#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 1339#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 1340#L510-1 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 1360#L510-5 strlen_#res#1 := strlen_~i~0#1; 1332#L511 strstr_#t~ret11#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~nl~0#1 := strstr_#t~ret11#1;havoc strstr_#t~ret11#1;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~haystack#1.base, strstr_~haystack#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 1333#L509-2 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 1344#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 1345#L510-7 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 1348#L510-11 strlen_#res#1 := strlen_~i~0#1; 1353#L511-1 strstr_#t~ret12#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~hl~0#1 := strstr_#t~ret12#1;havoc strstr_#t~ret12#1;havoc strstr_~i~1#1; 1343#L530 assume !(0 == strstr_~nl~0#1 % 18446744073709551616); 1335#L531 assume !(strstr_~nl~0#1 % 18446744073709551616 > strstr_~hl~0#1 % 18446744073709551616);strstr_~i~1#1 := 1 + (strstr_~hl~0#1 - strstr_~nl~0#1); 1336#L532-3 [2021-11-20 05:35:40,872 INFO L793 eck$LassoCheckResult]: Loop: 1336#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 1359#L533 assume !strstr_#t~short17#1; 1356#L533-2 assume !strstr_#t~short17#1;havoc strstr_#t~mem14#1;havoc strstr_#t~mem15#1;havoc strstr_#t~ret16#1;havoc strstr_#t~short17#1;strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;havoc strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset; 1357#L532-2 strstr_#t~pre13#1 := strstr_~i~1#1 - 1;strstr_~i~1#1 := strstr_~i~1#1 - 1;havoc strstr_#t~pre13#1; 1336#L532-3 [2021-11-20 05:35:40,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:40,874 INFO L85 PathProgramCache]: Analyzing trace with hash -115443887, now seen corresponding path program 1 times [2021-11-20 05:35:40,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:40,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112379899] [2021-11-20 05:35:40,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:40,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:40,941 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 05:35:40,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:35:40,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112379899] [2021-11-20 05:35:40,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112379899] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:35:40,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:35:40,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:35:40,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256717509] [2021-11-20 05:35:40,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:35:40,943 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 05:35:40,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:40,943 INFO L85 PathProgramCache]: Analyzing trace with hash 4089565, now seen corresponding path program 2 times [2021-11-20 05:35:40,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:40,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132610201] [2021-11-20 05:35:40,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:40,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:40,948 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:40,952 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:41,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:41,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:35:41,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:35:41,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:35:41,128 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. cyclomatic complexity: 22 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 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 05:35:41,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:35:41,171 INFO L93 Difference]: Finished difference Result 100 states and 118 transitions. [2021-11-20 05:35:41,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:35:41,172 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 118 transitions. [2021-11-20 05:35:41,173 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-11-20 05:35:41,173 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 72 states and 86 transitions. [2021-11-20 05:35:41,174 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2021-11-20 05:35:41,174 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-11-20 05:35:41,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 86 transitions. [2021-11-20 05:35:41,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:35:41,174 INFO L681 BuchiCegarLoop]: Abstraction has 72 states and 86 transitions. [2021-11-20 05:35:41,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 86 transitions. [2021-11-20 05:35:41,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 55. [2021-11-20 05:35:41,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.2) internal successors, (66), 54 states have internal predecessors, (66), 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 05:35:41,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2021-11-20 05:35:41,177 INFO L704 BuchiCegarLoop]: Abstraction has 55 states and 66 transitions. [2021-11-20 05:35:41,177 INFO L587 BuchiCegarLoop]: Abstraction has 55 states and 66 transitions. [2021-11-20 05:35:41,177 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-11-20 05:35:41,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 66 transitions. [2021-11-20 05:35:41,178 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-20 05:35:41,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:35:41,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:35:41,178 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:35:41,178 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-20 05:35:41,179 INFO L791 eck$LassoCheckResult]: Stem: 1536#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1511#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 1512#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 1496#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 1497#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 1508#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 1501#L552-3 assume !!(main_~i~3#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet26#1, main_~needle~0#1.base, main_~needle~0#1.offset + main_~i~3#1, 1);havoc main_#t~nondet26#1; 1502#L552-2 main_#t~post25#1 := main_~i~3#1;main_~i~3#1 := 1 + main_#t~post25#1;havoc main_#t~post25#1; 1503#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 1504#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 1505#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 1547#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 1546#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 1526#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 1527#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 1540#L510-1 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 1541#L510-5 strlen_#res#1 := strlen_~i~0#1; 1506#L511 strstr_#t~ret11#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~nl~0#1 := strstr_#t~ret11#1;havoc strstr_#t~ret11#1;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~haystack#1.base, strstr_~haystack#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 1507#L509-2 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 1518#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 1519#L510-7 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 1522#L510-11 strlen_#res#1 := strlen_~i~0#1; 1531#L511-1 strstr_#t~ret12#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~hl~0#1 := strstr_#t~ret12#1;havoc strstr_#t~ret12#1;havoc strstr_~i~1#1; 1517#L530 assume !(0 == strstr_~nl~0#1 % 18446744073709551616); 1509#L531 assume !(strstr_~nl~0#1 % 18446744073709551616 > strstr_~hl~0#1 % 18446744073709551616);strstr_~i~1#1 := 1 + (strstr_~hl~0#1 - strstr_~nl~0#1); 1510#L532-3 [2021-11-20 05:35:41,179 INFO L793 eck$LassoCheckResult]: Loop: 1510#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 1537#L533 assume !strstr_#t~short17#1; 1534#L533-2 assume !strstr_#t~short17#1;havoc strstr_#t~mem14#1;havoc strstr_#t~mem15#1;havoc strstr_#t~ret16#1;havoc strstr_#t~short17#1;strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;havoc strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset; 1535#L532-2 strstr_#t~pre13#1 := strstr_~i~1#1 - 1;strstr_~i~1#1 := strstr_~i~1#1 - 1;havoc strstr_#t~pre13#1; 1510#L532-3 [2021-11-20 05:35:41,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:41,179 INFO L85 PathProgramCache]: Analyzing trace with hash 278203018, now seen corresponding path program 1 times [2021-11-20 05:35:41,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:41,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605070783] [2021-11-20 05:35:41,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:41,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:41,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 05:35:41,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:35:41,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605070783] [2021-11-20 05:35:41,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605070783] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:35:41,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646916681] [2021-11-20 05:35:41,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:41,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:35:41,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:41,381 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:35:41,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2021-11-20 05:35:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:41,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:35:41,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:41,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 05:35:41,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:35:41,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646916681] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:35:41,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:35:41,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-11-20 05:35:41,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624076152] [2021-11-20 05:35:41,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:35:41,545 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 05:35:41,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:41,545 INFO L85 PathProgramCache]: Analyzing trace with hash 4089565, now seen corresponding path program 3 times [2021-11-20 05:35:41,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:41,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434608557] [2021-11-20 05:35:41,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:41,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:41,550 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:41,554 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:41,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:35:41,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:35:41,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:35:41,663 INFO L87 Difference]: Start difference. First operand 55 states and 66 transitions. cyclomatic complexity: 18 Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 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 05:35:41,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:35:41,722 INFO L93 Difference]: Finished difference Result 63 states and 73 transitions. [2021-11-20 05:35:41,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:35:41,723 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 73 transitions. [2021-11-20 05:35:41,724 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-20 05:35:41,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 41 states and 48 transitions. [2021-11-20 05:35:41,724 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-11-20 05:35:41,724 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-11-20 05:35:41,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 48 transitions. [2021-11-20 05:35:41,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:35:41,725 INFO L681 BuchiCegarLoop]: Abstraction has 41 states and 48 transitions. [2021-11-20 05:35:41,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 48 transitions. [2021-11-20 05:35:41,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2021-11-20 05:35:41,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 38 states have internal predecessors, (46), 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 05:35:41,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2021-11-20 05:35:41,727 INFO L704 BuchiCegarLoop]: Abstraction has 39 states and 46 transitions. [2021-11-20 05:35:41,727 INFO L587 BuchiCegarLoop]: Abstraction has 39 states and 46 transitions. [2021-11-20 05:35:41,727 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-11-20 05:35:41,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 46 transitions. [2021-11-20 05:35:41,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-20 05:35:41,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:35:41,728 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:35:41,729 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:35:41,729 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-20 05:35:41,729 INFO L791 eck$LassoCheckResult]: Stem: 1743#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1722#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 1723#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 1708#L544-3 assume !!(main_~i~2#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet22#1, main_~hay~0#1.base, main_~hay~0#1.offset + main_~i~2#1, 1);havoc main_#t~nondet22#1; 1709#L544-2 main_#t~post21#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post21#1;havoc main_#t~post21#1; 1710#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 1711#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 1719#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 1712#L552-3 assume !!(main_~i~3#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet26#1, main_~needle~0#1.base, main_~needle~0#1.offset + main_~i~3#1, 1);havoc main_#t~nondet26#1; 1713#L552-2 main_#t~post25#1 := main_~i~3#1;main_~i~3#1 := 1 + main_#t~post25#1;havoc main_#t~post25#1; 1714#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 1715#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 1718#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 1724#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 1725#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 1737#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 1726#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 1727#L510-1 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 1745#L510-5 strlen_#res#1 := strlen_~i~0#1; 1716#L511 strstr_#t~ret11#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~nl~0#1 := strstr_#t~ret11#1;havoc strstr_#t~ret11#1;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~haystack#1.base, strstr_~haystack#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 1717#L509-2 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 1729#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 1730#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 1734#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 1731#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 1732#L510-7 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 1733#L510-11 strlen_#res#1 := strlen_~i~0#1; 1738#L511-1 strstr_#t~ret12#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~hl~0#1 := strstr_#t~ret12#1;havoc strstr_#t~ret12#1;havoc strstr_~i~1#1; 1728#L530 assume !(0 == strstr_~nl~0#1 % 18446744073709551616); 1720#L531 assume !(strstr_~nl~0#1 % 18446744073709551616 > strstr_~hl~0#1 % 18446744073709551616);strstr_~i~1#1 := 1 + (strstr_~hl~0#1 - strstr_~nl~0#1); 1721#L532-3 [2021-11-20 05:35:41,730 INFO L793 eck$LassoCheckResult]: Loop: 1721#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 1744#L533 assume !strstr_#t~short17#1; 1741#L533-2 assume !strstr_#t~short17#1;havoc strstr_#t~mem14#1;havoc strstr_#t~mem15#1;havoc strstr_#t~ret16#1;havoc strstr_#t~short17#1;strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;havoc strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset; 1742#L532-2 strstr_#t~pre13#1 := strstr_~i~1#1 - 1;strstr_~i~1#1 := strstr_~i~1#1 - 1;havoc strstr_#t~pre13#1; 1721#L532-3 [2021-11-20 05:35:41,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:41,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1690519729, now seen corresponding path program 1 times [2021-11-20 05:35:41,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:41,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405306826] [2021-11-20 05:35:41,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:41,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:41,747 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:41,768 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:41,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:41,769 INFO L85 PathProgramCache]: Analyzing trace with hash 4089565, now seen corresponding path program 4 times [2021-11-20 05:35:41,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:41,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793918376] [2021-11-20 05:35:41,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:41,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:41,773 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:41,777 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:41,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:41,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1271781261, now seen corresponding path program 1 times [2021-11-20 05:35:41,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:41,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183574694] [2021-11-20 05:35:41,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:41,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:41,802 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:41,826 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:44,239 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:35:44,239 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:35:44,239 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:35:44,239 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:35:44,239 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 05:35:44,239 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:44,239 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:35:44,239 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:35:44,239 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration11_Lasso [2021-11-20 05:35:44,239 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:35:44,239 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:35:44,243 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 05:35:44,250 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 05:35:44,252 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 05:35:44,254 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 05:35:44,256 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 05:35:44,258 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 05:35:44,260 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 05:35:44,262 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 05:35:44,264 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 05:35:44,266 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 05:35:44,843 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 05:35:44,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:44,848 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 05:35:44,850 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 05:35:44,852 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 05:35:44,854 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 05:35:44,856 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 05:35:44,858 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 05:35:44,860 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 05:35:44,862 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 05:35:44,864 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 05:35:44,867 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 05:35:44,869 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 05:35:44,871 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 05:35:44,884 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 05:35:44,886 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 05:35:44,888 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 05:35:44,890 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 05:35:44,893 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 05:35:45,493 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:35:45,493 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 05:35:45,493 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:45,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:45,494 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:45,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-11-20 05:35:45,499 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 05:35:45,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:45,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:45,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:45,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:45,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:45,507 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:45,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:45,516 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:45,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-11-20 05:35:45,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:45,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:45,536 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:45,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-11-20 05:35:45,539 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 05:35:45,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:45,546 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:45,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:45,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:45,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:45,547 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:45,547 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:45,548 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:45,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:45,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:45,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:45,569 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:45,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-11-20 05:35:45,571 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 05:35:45,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:45,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:45,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:45,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:45,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:45,580 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:45,580 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:45,614 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:45,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:45,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:45,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:45,648 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:45,650 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 05:35:45,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:45,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:45,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:45,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:45,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:45,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:45,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:45,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-11-20 05:35:45,674 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:45,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-11-20 05:35:45,701 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:45,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:45,702 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:45,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-11-20 05:35:45,704 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 05:35:45,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:45,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:45,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:45,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:45,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:45,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:45,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:45,714 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:45,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-11-20 05:35:45,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:45,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:45,736 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:45,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-11-20 05:35:45,737 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 05:35:45,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:45,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:45,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:45,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:45,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:45,745 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:45,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:45,746 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:45,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-11-20 05:35:45,765 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:45,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:45,766 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:45,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-11-20 05:35:45,768 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 05:35:45,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:45,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:45,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:45,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:45,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:45,776 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:45,776 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:45,777 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:45,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:45,797 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:45,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:45,798 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:45,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-11-20 05:35:45,799 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 05:35:45,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:45,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:45,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:45,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:45,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:45,807 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:45,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:45,808 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:45,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-11-20 05:35:45,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:45,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:45,828 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:45,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-11-20 05:35:45,830 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 05:35:45,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:45,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:45,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:45,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:45,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:45,837 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:45,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:45,838 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:45,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-11-20 05:35:45,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:45,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:45,863 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:45,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-11-20 05:35:45,883 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 05:35:45,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:45,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:45,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:45,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:45,915 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:45,915 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:45,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:45,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:45,966 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:45,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:45,967 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:45,983 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 05:35:45,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:45,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:45,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:45,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:46,006 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:46,006 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:46,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-11-20 05:35:46,030 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 05:35:46,099 INFO L443 ModelExtractionUtils]: Simplification made 25 calls to the SMT solver. [2021-11-20 05:35:46,099 INFO L444 ModelExtractionUtils]: 11 out of 52 variables were initially zero. Simplification set additionally 36 variables to zero. [2021-11-20 05:35:46,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:46,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:46,101 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:46,102 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 05:35:46,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-11-20 05:35:46,132 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-11-20 05:35:46,132 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 05:35:46,132 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strstr_~haystack#1.offset) = -2*ULTIMATE.start_strstr_~haystack#1.offset + 3 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_strstr_~haystack#1.base)_1 + 2 >= 0] [2021-11-20 05:35:46,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:46,268 INFO L297 tatePredicateManager]: 25 out of 26 supporting invariants were superfluous and have been removed [2021-11-20 05:35:46,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:46,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 05:35:46,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:46,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 05:35:46,490 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-20 05:35:46,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2021-11-20 05:35:46,501 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 05:35:46,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-20 05:35:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:46,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 05:35:46,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:46,769 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 05:35:46,770 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.8 stem predicates 3 loop predicates [2021-11-20 05:35:46,770 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 46 transitions. cyclomatic complexity: 12 Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 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 05:35:46,985 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 46 transitions. cyclomatic complexity: 12. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 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 87 states and 107 transitions. Complement of second has 13 states. [2021-11-20 05:35:46,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 6 stem states 2 non-accepting loop states 2 accepting loop states [2021-11-20 05:35:46,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 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 05:35:46,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 68 transitions. [2021-11-20 05:35:46,987 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 68 transitions. Stem has 30 letters. Loop has 4 letters. [2021-11-20 05:35:46,988 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:46,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 68 transitions. Stem has 34 letters. Loop has 4 letters. [2021-11-20 05:35:46,988 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:46,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 68 transitions. Stem has 30 letters. Loop has 8 letters. [2021-11-20 05:35:46,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:46,989 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 87 states and 107 transitions. [2021-11-20 05:35:46,990 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-11-20 05:35:46,991 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 87 states to 84 states and 101 transitions. [2021-11-20 05:35:46,991 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2021-11-20 05:35:46,991 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-11-20 05:35:46,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 84 states and 101 transitions. [2021-11-20 05:35:46,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:35:46,991 INFO L681 BuchiCegarLoop]: Abstraction has 84 states and 101 transitions. [2021-11-20 05:35:46,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states and 101 transitions. [2021-11-20 05:35:46,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2021-11-20 05:35:46,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.2) internal successors, (96), 79 states have internal predecessors, (96), 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 05:35:47,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 96 transitions. [2021-11-20 05:35:47,000 INFO L704 BuchiCegarLoop]: Abstraction has 80 states and 96 transitions. [2021-11-20 05:35:47,000 INFO L587 BuchiCegarLoop]: Abstraction has 80 states and 96 transitions. [2021-11-20 05:35:47,000 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-11-20 05:35:47,000 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 96 transitions. [2021-11-20 05:35:47,001 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-11-20 05:35:47,001 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:35:47,001 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:35:47,002 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:35:47,003 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 05:35:47,003 INFO L791 eck$LassoCheckResult]: Stem: 2138#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2110#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 2111#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 2094#L544-3 assume !!(main_~i~2#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet22#1, main_~hay~0#1.base, main_~hay~0#1.offset + main_~i~2#1, 1);havoc main_#t~nondet22#1; 2095#L544-2 main_#t~post21#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post21#1;havoc main_#t~post21#1; 2096#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 2097#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 2152#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 2153#L552-3 assume !!(main_~i~3#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet26#1, main_~needle~0#1.base, main_~needle~0#1.offset + main_~i~3#1, 1);havoc main_#t~nondet26#1; 2172#L552-2 main_#t~post25#1 := main_~i~3#1;main_~i~3#1 := 1 + main_#t~post25#1;havoc main_#t~post25#1; 2171#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 2170#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 2169#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 2168#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 2115#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 2128#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 2114#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 2116#L510-1 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 2146#L510-5 strlen_#res#1 := strlen_~i~0#1; 2164#L511 strstr_#t~ret11#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~nl~0#1 := strstr_#t~ret11#1;havoc strstr_#t~ret11#1;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~haystack#1.base, strstr_~haystack#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 2163#L509-2 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 2162#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 2161#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 2144#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 2145#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 2160#L510-7 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 2159#L510-11 strlen_#res#1 := strlen_~i~0#1; 2158#L511-1 strstr_#t~ret12#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~hl~0#1 := strstr_#t~ret12#1;havoc strstr_#t~ret12#1;havoc strstr_~i~1#1; 2157#L530 assume !(0 == strstr_~nl~0#1 % 18446744073709551616); 2156#L531 assume !(strstr_~nl~0#1 % 18446744073709551616 > strstr_~hl~0#1 % 18446744073709551616);strstr_~i~1#1 := 1 + (strstr_~hl~0#1 - strstr_~nl~0#1); 2155#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 2149#L533 assume strstr_#t~short17#1;assume { :begin_inline_memcmp } true;memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset, memcmp_#in~src#1.base, memcmp_#in~src#1.offset, memcmp_#in~count#1 := strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1;havoc memcmp_#res#1;havoc memcmp_#t~pre5#1, memcmp_#t~mem7#1, memcmp_#t~mem8#1, memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset, memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset, memcmp_#t~pre6#1, memcmp_~dst#1.base, memcmp_~dst#1.offset, memcmp_~src#1.base, memcmp_~src#1.offset, memcmp_~count#1, memcmp_~r~0#1, memcmp_~d~0#1.base, memcmp_~d~0#1.offset, memcmp_~s~0#1.base, memcmp_~s~0#1.offset;memcmp_~dst#1.base, memcmp_~dst#1.offset := memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset;memcmp_~src#1.base, memcmp_~src#1.offset := memcmp_#in~src#1.base, memcmp_#in~src#1.offset;memcmp_~count#1 := memcmp_#in~count#1;havoc memcmp_~r~0#1;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~dst#1.base, memcmp_~dst#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~src#1.base, memcmp_~src#1.offset;memcmp_#t~pre5#1 := 1 + memcmp_~count#1;memcmp_~count#1 := 1 + memcmp_~count#1;havoc memcmp_#t~pre5#1; 2131#L518-3 [2021-11-20 05:35:47,004 INFO L793 eck$LassoCheckResult]: Loop: 2131#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 2150#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 2130#L519 assume !(0 != memcmp_~r~0#1);havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;havoc memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset;memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;havoc memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset; 2131#L518-3 [2021-11-20 05:35:47,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:47,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1091824948, now seen corresponding path program 1 times [2021-11-20 05:35:47,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:47,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821354473] [2021-11-20 05:35:47,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:47,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:47,039 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:47,070 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:47,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:47,071 INFO L85 PathProgramCache]: Analyzing trace with hash 139186, now seen corresponding path program 1 times [2021-11-20 05:35:47,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:47,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858682266] [2021-11-20 05:35:47,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:47,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:47,077 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:47,086 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:47,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:47,087 INFO L85 PathProgramCache]: Analyzing trace with hash 769802655, now seen corresponding path program 1 times [2021-11-20 05:35:47,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:47,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032557017] [2021-11-20 05:35:47,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:47,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:47,132 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:47,183 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:47,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:50,932 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:35:50,932 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:35:50,933 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:35:50,933 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:35:50,933 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 05:35:50,933 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:50,933 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:35:50,933 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:35:50,933 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration12_Lasso [2021-11-20 05:35:50,933 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:35:50,933 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:35:50,944 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 05:35:50,949 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 05:35:50,951 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 05:35:50,953 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 05:35:50,967 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 05:35:50,969 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 05:35:50,970 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 05:35:50,981 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 05:35:50,987 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 05:35:50,989 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 05:35:50,990 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 05:35:50,992 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 05:35:52,013 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 05:35:52,014 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 05:35:52,018 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 05:35:52,020 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 05:35:52,022 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 05:35:52,024 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 05:35:52,036 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 05:35:52,037 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 05:35:52,039 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 05:35:52,040 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 05:35:52,042 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 05:35:52,043 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 05:35:52,045 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 05:35:52,046 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 05:35:52,048 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 05:35:52,049 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 05:35:52,051 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 05:35:52,052 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 05:35:52,054 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 05:35:52,055 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 05:35:52,057 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 05:35:52,058 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 05:35:52,060 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 05:35:53,111 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:35:53,112 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 05:35:53,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:53,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:53,115 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:53,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-11-20 05:35:53,116 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 05:35:53,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:53,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:53,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:53,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:53,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:53,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:53,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:53,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:53,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:53,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:53,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:53,145 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:53,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-11-20 05:35:53,146 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 05:35:53,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:53,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:53,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:53,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:53,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:53,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:53,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:53,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:53,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:53,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:53,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:53,183 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:53,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-11-20 05:35:53,184 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 05:35:53,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:53,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:53,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:53,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:53,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:53,192 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:53,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:53,193 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:53,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:53,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:53,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:53,213 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:53,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-11-20 05:35:53,214 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 05:35:53,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:53,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:53,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:53,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:53,227 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:53,228 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:53,255 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:53,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:53,283 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:53,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:53,284 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:53,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-11-20 05:35:53,285 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 05:35:53,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:53,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:53,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:53,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:53,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:53,292 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:53,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:53,294 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:53,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:53,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:53,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:53,314 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:53,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-11-20 05:35:53,316 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 05:35:53,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:53,323 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:53,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:53,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:53,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:53,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:53,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:53,325 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:53,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:53,345 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:53,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:53,345 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:53,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-11-20 05:35:53,346 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 05:35:53,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:53,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:53,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:53,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:53,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:53,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:53,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:53,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:53,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2021-11-20 05:35:53,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:53,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:53,376 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:53,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-11-20 05:35:53,377 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 05:35:53,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:53,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:53,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:53,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:53,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:53,384 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:53,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:53,385 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:53,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2021-11-20 05:35:53,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:53,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:53,405 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:53,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-11-20 05:35:53,408 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 05:35:53,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:53,415 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:53,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:53,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:53,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:53,416 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:53,416 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:53,417 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:53,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2021-11-20 05:35:53,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:53,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:53,437 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:53,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-11-20 05:35:53,438 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 05:35:53,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:53,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:53,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:53,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:53,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:53,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:53,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:53,446 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:53,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Ended with exit code 0 [2021-11-20 05:35:53,466 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:53,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:53,467 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:53,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-11-20 05:35:53,468 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 05:35:53,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:53,475 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:53,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:53,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:53,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:53,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:53,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:53,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:53,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2021-11-20 05:35:53,497 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:53,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:53,498 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:53,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-11-20 05:35:53,499 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 05:35:53,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:53,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:53,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:53,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:53,508 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:53,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:53,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:53,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:53,532 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:53,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:53,532 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:53,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-11-20 05:35:53,533 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 05:35:53,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:53,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:53,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:53,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:53,559 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:53,559 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:53,598 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 05:35:53,727 INFO L443 ModelExtractionUtils]: Simplification made 37 calls to the SMT solver. [2021-11-20 05:35:53,727 INFO L444 ModelExtractionUtils]: 15 out of 79 variables were initially zero. Simplification set additionally 61 variables to zero. [2021-11-20 05:35:53,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:53,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:53,742 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:53,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-11-20 05:35:53,771 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 05:35:53,787 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 05:35:53,788 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 05:35:53,788 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_memcmp_~d~0#1.offset, v_rep(select #length ULTIMATE.start_strlen_~s#1.base)_4) = -1*ULTIMATE.start_memcmp_~d~0#1.offset + 1*v_rep(select #length ULTIMATE.start_strlen_~s#1.base)_4 Supporting invariants [] [2021-11-20 05:35:53,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:53,977 INFO L297 tatePredicateManager]: 33 out of 34 supporting invariants were superfluous and have been removed [2021-11-20 05:35:53,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:54,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-20 05:35:54,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:54,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:35:54,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:54,228 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 05:35:54,228 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-11-20 05:35:54,229 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 96 transitions. cyclomatic complexity: 26 Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 05:35:54,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:54,278 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 96 transitions. cyclomatic complexity: 26. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 159 states and 194 transitions. Complement of second has 8 states. [2021-11-20 05:35:54,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-20 05:35:54,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 05:35:54,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2021-11-20 05:35:54,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 32 letters. Loop has 3 letters. [2021-11-20 05:35:54,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:54,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 35 letters. Loop has 3 letters. [2021-11-20 05:35:54,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:54,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 32 letters. Loop has 6 letters. [2021-11-20 05:35:54,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:54,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 194 transitions. [2021-11-20 05:35:54,282 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 24 [2021-11-20 05:35:54,285 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 125 states and 153 transitions. [2021-11-20 05:35:54,285 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 72 [2021-11-20 05:35:54,285 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2021-11-20 05:35:54,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 153 transitions. [2021-11-20 05:35:54,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:35:54,286 INFO L681 BuchiCegarLoop]: Abstraction has 125 states and 153 transitions. [2021-11-20 05:35:54,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 153 transitions. [2021-11-20 05:35:54,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 99. [2021-11-20 05:35:54,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 99 states have (on average 1.2222222222222223) internal successors, (121), 98 states have internal predecessors, (121), 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 05:35:54,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 121 transitions. [2021-11-20 05:35:54,291 INFO L704 BuchiCegarLoop]: Abstraction has 99 states and 121 transitions. [2021-11-20 05:35:54,291 INFO L587 BuchiCegarLoop]: Abstraction has 99 states and 121 transitions. [2021-11-20 05:35:54,291 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-11-20 05:35:54,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 99 states and 121 transitions. [2021-11-20 05:35:54,292 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 16 [2021-11-20 05:35:54,292 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:35:54,292 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:35:54,293 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:35:54,293 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-20 05:35:54,294 INFO L791 eck$LassoCheckResult]: Stem: 2651#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2621#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 2622#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 2606#L544-3 assume !!(main_~i~2#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet22#1, main_~hay~0#1.base, main_~hay~0#1.offset + main_~i~2#1, 1);havoc main_#t~nondet22#1; 2607#L544-2 main_#t~post21#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post21#1;havoc main_#t~post21#1; 2611#L544-3 assume !!(main_~i~2#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet22#1, main_~hay~0#1.base, main_~hay~0#1.offset + main_~i~2#1, 1);havoc main_#t~nondet22#1; 2610#L544-2 main_#t~post21#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post21#1;havoc main_#t~post21#1; 2608#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 2609#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 2676#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 2677#L552-3 assume !!(main_~i~3#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet26#1, main_~needle~0#1.base, main_~needle~0#1.offset + main_~i~3#1, 1);havoc main_#t~nondet26#1; 2660#L552-2 main_#t~post25#1 := main_~i~3#1;main_~i~3#1 := 1 + main_#t~post25#1;havoc main_#t~post25#1; 2661#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 2704#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 2643#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 2625#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 2626#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 2642#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 2627#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 2628#L510-1 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 2664#L510-5 strlen_#res#1 := strlen_~i~0#1; 2617#L511 strstr_#t~ret11#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~nl~0#1 := strstr_#t~ret11#1;havoc strstr_#t~ret11#1;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~haystack#1.base, strstr_~haystack#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 2618#L509-2 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 2630#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 2631#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 2662#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 2663#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 2639#L510-7 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 2640#L510-11 strlen_#res#1 := strlen_~i~0#1; 2644#L511-1 strstr_#t~ret12#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~hl~0#1 := strstr_#t~ret12#1;havoc strstr_#t~ret12#1;havoc strstr_~i~1#1; 2692#L530 assume !(0 == strstr_~nl~0#1 % 18446744073709551616); 2691#L531 assume !(strstr_~nl~0#1 % 18446744073709551616 > strstr_~hl~0#1 % 18446744073709551616);strstr_~i~1#1 := 1 + (strstr_~hl~0#1 - strstr_~nl~0#1); 2689#L532-3 [2021-11-20 05:35:54,294 INFO L793 eck$LassoCheckResult]: Loop: 2689#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 2686#L533 assume !strstr_#t~short17#1; 2687#L533-2 assume !strstr_#t~short17#1;havoc strstr_#t~mem14#1;havoc strstr_#t~mem15#1;havoc strstr_#t~ret16#1;havoc strstr_#t~short17#1;strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;havoc strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset; 2690#L532-2 strstr_#t~pre13#1 := strstr_~i~1#1 - 1;strstr_~i~1#1 := strstr_~i~1#1 - 1;havoc strstr_#t~pre13#1; 2689#L532-3 [2021-11-20 05:35:54,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:54,294 INFO L85 PathProgramCache]: Analyzing trace with hash 2104844943, now seen corresponding path program 2 times [2021-11-20 05:35:54,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:54,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526191032] [2021-11-20 05:35:54,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:54,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:54,314 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:54,335 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:54,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:54,336 INFO L85 PathProgramCache]: Analyzing trace with hash 4089565, now seen corresponding path program 5 times [2021-11-20 05:35:54,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:54,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144233164] [2021-11-20 05:35:54,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:54,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:54,340 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:54,343 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:54,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:54,344 INFO L85 PathProgramCache]: Analyzing trace with hash 671339115, now seen corresponding path program 2 times [2021-11-20 05:35:54,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:54,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386062119] [2021-11-20 05:35:54,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:54,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:54,364 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:54,389 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:56,589 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:35:56,590 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:35:56,590 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:35:56,590 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:35:56,590 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 05:35:56,590 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:56,590 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:35:56,590 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:35:56,590 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration13_Lasso [2021-11-20 05:35:56,590 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:35:56,590 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:35:56,593 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 05:35:56,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:35:56,605 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 05:35:56,607 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 05:35:56,610 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 05:35:56,611 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 05:35:56,613 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 05:35:56,614 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 05:35:56,615 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 05:35:56,617 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 05:35:56,618 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 05:35:56,620 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 05:35:57,020 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 05:35:57,022 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 05:35:57,024 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 05:35:57,038 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 05:35:57,040 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 05:35:57,042 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 05:35:57,044 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 05:35:57,046 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 05:35:57,048 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 05:35:57,050 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 05:35:57,051 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 05:35:57,053 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 05:35:57,054 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 05:35:57,056 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 05:35:57,057 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 05:35:57,059 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 05:35:57,652 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:35:57,653 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 05:35:57,653 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:57,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:57,663 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:57,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-11-20 05:35:57,664 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 05:35:57,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:57,671 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:57,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:57,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:57,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:57,672 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:57,672 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:57,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:57,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:57,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:57,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:57,693 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:57,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-11-20 05:35:57,695 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 05:35:57,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:57,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:57,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:57,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:57,706 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:57,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:57,713 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:57,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2021-11-20 05:35:57,733 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:57,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:57,733 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:57,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-11-20 05:35:57,735 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 05:35:57,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:57,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:57,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:57,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:57,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:57,743 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:57,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:57,744 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:57,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Ended with exit code 0 [2021-11-20 05:35:57,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:57,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:57,765 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:57,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-11-20 05:35:57,766 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 05:35:57,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:57,773 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:57,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:57,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:57,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:57,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:57,774 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:57,778 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:57,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2021-11-20 05:35:57,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:57,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:57,799 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:57,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2021-11-20 05:35:57,800 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 05:35:57,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:57,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:57,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:57,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:57,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:57,807 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:57,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:57,808 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:57,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:57,828 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:57,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:57,829 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:57,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-11-20 05:35:57,830 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 05:35:57,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:57,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:57,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:57,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:57,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:57,837 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:57,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:57,838 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:57,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:57,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:57,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:57,859 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:57,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2021-11-20 05:35:57,881 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 05:35:57,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:57,889 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:57,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:57,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:57,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:57,890 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:57,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:57,892 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:57,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Ended with exit code 0 [2021-11-20 05:35:57,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:57,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:57,912 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:57,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-11-20 05:35:57,914 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 05:35:57,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:57,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:57,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:57,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:57,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:57,921 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:57,921 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:57,923 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:57,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:57,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:57,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:57,943 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:57,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-11-20 05:35:57,945 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 05:35:57,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:57,953 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:57,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:57,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:57,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:57,953 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:57,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:57,954 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:57,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:57,974 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:57,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:57,974 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:57,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-11-20 05:35:57,975 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 05:35:57,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:57,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:57,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:57,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:57,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:57,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:57,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:57,984 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:58,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:58,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:58,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:58,004 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:58,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-11-20 05:35:58,006 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 05:35:58,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:58,013 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:35:58,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:58,013 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:58,013 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:58,013 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 05:35:58,013 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:35:58,014 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:58,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:58,033 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:58,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:58,034 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:58,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-11-20 05:35:58,037 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 05:35:58,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:58,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:58,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:58,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:58,047 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:58,047 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:58,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:58,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Ended with exit code 0 [2021-11-20 05:35:58,085 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:58,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:58,086 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:58,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2021-11-20 05:35:58,087 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 05:35:58,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:58,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:58,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:58,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:58,101 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:58,101 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:58,103 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:58,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Ended with exit code 0 [2021-11-20 05:35:58,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:58,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:58,123 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:58,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2021-11-20 05:35:58,124 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 05:35:58,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:58,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:58,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:58,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:58,134 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:58,134 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:58,138 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:58,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Ended with exit code 0 [2021-11-20 05:35:58,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:58,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:58,158 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:58,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-11-20 05:35:58,159 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 05:35:58,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:58,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:58,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:58,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:58,174 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:58,174 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:58,185 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 05:35:58,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:58,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:58,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:58,205 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:58,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-11-20 05:35:58,206 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 05:35:58,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:35:58,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:35:58,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 05:35:58,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:35:58,223 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 05:35:58,223 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 05:35:58,241 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 05:35:58,289 INFO L443 ModelExtractionUtils]: Simplification made 23 calls to the SMT solver. [2021-11-20 05:35:58,289 INFO L444 ModelExtractionUtils]: 13 out of 61 variables were initially zero. Simplification set additionally 45 variables to zero. [2021-11-20 05:35:58,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:35:58,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:58,290 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:35:58,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-11-20 05:35:58,291 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 05:35:58,299 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 05:35:58,299 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 05:35:58,300 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strstr_~haystack#1.offset, v_rep(select #length ULTIMATE.start_main_~hay~0#1.base)_3) = -1*ULTIMATE.start_strstr_~haystack#1.offset + 1*v_rep(select #length ULTIMATE.start_main_~hay~0#1.base)_3 Supporting invariants [] [2021-11-20 05:35:58,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Forceful destruction successful, exit code 0 [2021-11-20 05:35:58,390 INFO L297 tatePredicateManager]: 20 out of 22 supporting invariants were superfluous and have been removed [2021-11-20 05:35:58,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:58,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:58,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:35:58,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:58,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 05:35:58,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:58,751 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 05:35:58,752 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2021-11-20 05:35:58,752 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 99 states and 121 transitions. cyclomatic complexity: 36 Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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 05:35:58,800 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 99 states and 121 transitions. cyclomatic complexity: 36. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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 140 states and 180 transitions. Complement of second has 8 states. [2021-11-20 05:35:58,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-20 05:35:58,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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 05:35:58,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 41 transitions. [2021-11-20 05:35:58,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 41 transitions. Stem has 32 letters. Loop has 4 letters. [2021-11-20 05:35:58,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:58,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 41 transitions. Stem has 36 letters. Loop has 4 letters. [2021-11-20 05:35:58,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:58,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 41 transitions. Stem has 32 letters. Loop has 8 letters. [2021-11-20 05:35:58,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:35:58,809 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 140 states and 180 transitions. [2021-11-20 05:35:58,810 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-20 05:35:58,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 140 states to 105 states and 128 transitions. [2021-11-20 05:35:58,812 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2021-11-20 05:35:58,812 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2021-11-20 05:35:58,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 128 transitions. [2021-11-20 05:35:58,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:35:58,812 INFO L681 BuchiCegarLoop]: Abstraction has 105 states and 128 transitions. [2021-11-20 05:35:58,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 128 transitions. [2021-11-20 05:35:58,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 54. [2021-11-20 05:35:58,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 53 states have internal predecessors, (65), 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 05:35:58,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2021-11-20 05:35:58,816 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-11-20 05:35:58,816 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-11-20 05:35:58,816 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-11-20 05:35:58,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 65 transitions. [2021-11-20 05:35:58,816 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 05:35:58,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:35:58,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:35:58,821 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:35:58,822 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 05:35:58,822 INFO L791 eck$LassoCheckResult]: Stem: 3112#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 3087#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 3088#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 3075#L544-3 assume !!(main_~i~2#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet22#1, main_~hay~0#1.base, main_~hay~0#1.offset + main_~i~2#1, 1);havoc main_#t~nondet22#1; 3076#L544-2 main_#t~post21#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post21#1;havoc main_#t~post21#1; 3077#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 3078#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 3086#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 3079#L552-3 assume !!(main_~i~3#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet26#1, main_~needle~0#1.base, main_~needle~0#1.offset + main_~i~3#1, 1);havoc main_#t~nondet26#1; 3080#L552-2 main_#t~post25#1 := main_~i~3#1;main_~i~3#1 := 1 + main_#t~post25#1;havoc main_#t~post25#1; 3081#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 3082#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 3083#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 3091#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3092#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 3104#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 3093#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3094#L510-1 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 3117#L510-5 strlen_#res#1 := strlen_~i~0#1; 3084#L511 strstr_#t~ret11#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~nl~0#1 := strstr_#t~ret11#1;havoc strstr_#t~ret11#1;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~haystack#1.base, strstr_~haystack#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 3085#L509-2 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 3096#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3097#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 3101#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 3098#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3099#L510-7 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 3100#L510-11 strlen_#res#1 := strlen_~i~0#1; 3105#L511-1 strstr_#t~ret12#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~hl~0#1 := strstr_#t~ret12#1;havoc strstr_#t~ret12#1;havoc strstr_~i~1#1; 3095#L530 assume !(0 == strstr_~nl~0#1 % 18446744073709551616); 3089#L531 assume !(strstr_~nl~0#1 % 18446744073709551616 > strstr_~hl~0#1 % 18446744073709551616);strstr_~i~1#1 := 1 + (strstr_~hl~0#1 - strstr_~nl~0#1); 3090#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 3115#L533 assume strstr_#t~short17#1;assume { :begin_inline_memcmp } true;memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset, memcmp_#in~src#1.base, memcmp_#in~src#1.offset, memcmp_#in~count#1 := strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1;havoc memcmp_#res#1;havoc memcmp_#t~pre5#1, memcmp_#t~mem7#1, memcmp_#t~mem8#1, memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset, memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset, memcmp_#t~pre6#1, memcmp_~dst#1.base, memcmp_~dst#1.offset, memcmp_~src#1.base, memcmp_~src#1.offset, memcmp_~count#1, memcmp_~r~0#1, memcmp_~d~0#1.base, memcmp_~d~0#1.offset, memcmp_~s~0#1.base, memcmp_~s~0#1.offset;memcmp_~dst#1.base, memcmp_~dst#1.offset := memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset;memcmp_~src#1.base, memcmp_~src#1.offset := memcmp_#in~src#1.base, memcmp_#in~src#1.offset;memcmp_~count#1 := memcmp_#in~count#1;havoc memcmp_~r~0#1;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~dst#1.base, memcmp_~dst#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~src#1.base, memcmp_~src#1.offset;memcmp_#t~pre5#1 := 1 + memcmp_~count#1;memcmp_~count#1 := 1 + memcmp_~count#1;havoc memcmp_#t~pre5#1; 3109#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 3126#L518-1 assume !(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1; 3102#L518-4 memcmp_#res#1 := 0; 3103#L524 strstr_#t~ret16#1 := memcmp_#res#1;assume { :end_inline_memcmp } true;strstr_#t~short17#1 := 0 == strstr_#t~ret16#1; 3116#L533-2 assume !strstr_#t~short17#1;havoc strstr_#t~mem14#1;havoc strstr_#t~mem15#1;havoc strstr_#t~ret16#1;havoc strstr_#t~short17#1;strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;havoc strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset; 3124#L532-2 strstr_#t~pre13#1 := strstr_~i~1#1 - 1;strstr_~i~1#1 := strstr_~i~1#1 - 1;havoc strstr_#t~pre13#1; 3123#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 3114#L533 assume strstr_#t~short17#1;assume { :begin_inline_memcmp } true;memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset, memcmp_#in~src#1.base, memcmp_#in~src#1.offset, memcmp_#in~count#1 := strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1;havoc memcmp_#res#1;havoc memcmp_#t~pre5#1, memcmp_#t~mem7#1, memcmp_#t~mem8#1, memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset, memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset, memcmp_#t~pre6#1, memcmp_~dst#1.base, memcmp_~dst#1.offset, memcmp_~src#1.base, memcmp_~src#1.offset, memcmp_~count#1, memcmp_~r~0#1, memcmp_~d~0#1.base, memcmp_~d~0#1.offset, memcmp_~s~0#1.base, memcmp_~s~0#1.offset;memcmp_~dst#1.base, memcmp_~dst#1.offset := memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset;memcmp_~src#1.base, memcmp_~src#1.offset := memcmp_#in~src#1.base, memcmp_#in~src#1.offset;memcmp_~count#1 := memcmp_#in~count#1;havoc memcmp_~r~0#1;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~dst#1.base, memcmp_~dst#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~src#1.base, memcmp_~src#1.offset;memcmp_#t~pre5#1 := 1 + memcmp_~count#1;memcmp_~count#1 := 1 + memcmp_~count#1;havoc memcmp_#t~pre5#1; 3107#L518-3 [2021-11-20 05:35:58,822 INFO L793 eck$LassoCheckResult]: Loop: 3107#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 3118#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 3106#L519 assume !(0 != memcmp_~r~0#1);havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;havoc memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset;memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;havoc memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset; 3107#L518-3 [2021-11-20 05:35:58,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:58,823 INFO L85 PathProgramCache]: Analyzing trace with hash -840479618, now seen corresponding path program 1 times [2021-11-20 05:35:58,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:58,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884593435] [2021-11-20 05:35:58,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:58,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:58,866 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-20 05:35:58,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:35:58,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884593435] [2021-11-20 05:35:58,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884593435] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:35:58,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:35:58,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:35:58,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322969047] [2021-11-20 05:35:58,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:35:58,869 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 05:35:58,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:58,869 INFO L85 PathProgramCache]: Analyzing trace with hash 139186, now seen corresponding path program 2 times [2021-11-20 05:35:58,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:58,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952945636] [2021-11-20 05:35:58,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:58,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:58,877 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:35:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:35:58,886 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:35:59,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:35:59,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:35:59,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:35:59,018 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. cyclomatic complexity: 19 Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 05:35:59,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:35:59,034 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2021-11-20 05:35:59,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:35:59,035 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 66 transitions. [2021-11-20 05:35:59,036 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 05:35:59,036 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 53 states and 62 transitions. [2021-11-20 05:35:59,036 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2021-11-20 05:35:59,037 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-11-20 05:35:59,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 62 transitions. [2021-11-20 05:35:59,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:35:59,037 INFO L681 BuchiCegarLoop]: Abstraction has 53 states and 62 transitions. [2021-11-20 05:35:59,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 62 transitions. [2021-11-20 05:35:59,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-20 05:35:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.169811320754717) internal successors, (62), 52 states have internal predecessors, (62), 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 05:35:59,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 62 transitions. [2021-11-20 05:35:59,039 INFO L704 BuchiCegarLoop]: Abstraction has 53 states and 62 transitions. [2021-11-20 05:35:59,039 INFO L587 BuchiCegarLoop]: Abstraction has 53 states and 62 transitions. [2021-11-20 05:35:59,039 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-11-20 05:35:59,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 62 transitions. [2021-11-20 05:35:59,039 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 05:35:59,039 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:35:59,039 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:35:59,040 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:35:59,040 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 05:35:59,041 INFO L791 eck$LassoCheckResult]: Stem: 3229#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 3206#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 3207#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 3194#L544-3 assume !!(main_~i~2#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet22#1, main_~hay~0#1.base, main_~hay~0#1.offset + main_~i~2#1, 1);havoc main_#t~nondet22#1; 3195#L544-2 main_#t~post21#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post21#1;havoc main_#t~post21#1; 3196#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 3197#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 3205#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 3198#L552-3 assume !!(main_~i~3#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet26#1, main_~needle~0#1.base, main_~needle~0#1.offset + main_~i~3#1, 1);havoc main_#t~nondet26#1; 3199#L552-2 main_#t~post25#1 := main_~i~3#1;main_~i~3#1 := 1 + main_#t~post25#1;havoc main_#t~post25#1; 3200#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 3201#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 3202#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 3210#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3211#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 3221#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 3212#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3213#L510-1 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 3235#L510-5 strlen_#res#1 := strlen_~i~0#1; 3203#L511 strstr_#t~ret11#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~nl~0#1 := strstr_#t~ret11#1;havoc strstr_#t~ret11#1;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~haystack#1.base, strstr_~haystack#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 3204#L509-2 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 3215#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3216#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 3220#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 3217#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3218#L510-7 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 3219#L510-11 strlen_#res#1 := strlen_~i~0#1; 3222#L511-1 strstr_#t~ret12#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~hl~0#1 := strstr_#t~ret12#1;havoc strstr_#t~ret12#1;havoc strstr_~i~1#1; 3214#L530 assume !(0 == strstr_~nl~0#1 % 18446744073709551616); 3208#L531 assume !(strstr_~nl~0#1 % 18446744073709551616 > strstr_~hl~0#1 % 18446744073709551616);strstr_~i~1#1 := 1 + (strstr_~hl~0#1 - strstr_~nl~0#1); 3209#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 3232#L533 assume strstr_#t~short17#1;assume { :begin_inline_memcmp } true;memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset, memcmp_#in~src#1.base, memcmp_#in~src#1.offset, memcmp_#in~count#1 := strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1;havoc memcmp_#res#1;havoc memcmp_#t~pre5#1, memcmp_#t~mem7#1, memcmp_#t~mem8#1, memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset, memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset, memcmp_#t~pre6#1, memcmp_~dst#1.base, memcmp_~dst#1.offset, memcmp_~src#1.base, memcmp_~src#1.offset, memcmp_~count#1, memcmp_~r~0#1, memcmp_~d~0#1.base, memcmp_~d~0#1.offset, memcmp_~s~0#1.base, memcmp_~s~0#1.offset;memcmp_~dst#1.base, memcmp_~dst#1.offset := memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset;memcmp_~src#1.base, memcmp_~src#1.offset := memcmp_#in~src#1.base, memcmp_#in~src#1.offset;memcmp_~count#1 := memcmp_#in~count#1;havoc memcmp_~r~0#1;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~dst#1.base, memcmp_~dst#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~src#1.base, memcmp_~src#1.offset;memcmp_#t~pre5#1 := 1 + memcmp_~count#1;memcmp_~count#1 := 1 + memcmp_~count#1;havoc memcmp_#t~pre5#1; 3226#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 3239#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 3240#L519 assume 0 != memcmp_~r~0#1;havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#res#1 := memcmp_~r~0#1; 3233#L524 strstr_#t~ret16#1 := memcmp_#res#1;assume { :end_inline_memcmp } true;strstr_#t~short17#1 := 0 == strstr_#t~ret16#1; 3234#L533-2 assume !strstr_#t~short17#1;havoc strstr_#t~mem14#1;havoc strstr_#t~mem15#1;havoc strstr_#t~ret16#1;havoc strstr_#t~short17#1;strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;havoc strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset; 3242#L532-2 strstr_#t~pre13#1 := strstr_~i~1#1 - 1;strstr_~i~1#1 := strstr_~i~1#1 - 1;havoc strstr_#t~pre13#1; 3241#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 3231#L533 assume strstr_#t~short17#1;assume { :begin_inline_memcmp } true;memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset, memcmp_#in~src#1.base, memcmp_#in~src#1.offset, memcmp_#in~count#1 := strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1;havoc memcmp_#res#1;havoc memcmp_#t~pre5#1, memcmp_#t~mem7#1, memcmp_#t~mem8#1, memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset, memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset, memcmp_#t~pre6#1, memcmp_~dst#1.base, memcmp_~dst#1.offset, memcmp_~src#1.base, memcmp_~src#1.offset, memcmp_~count#1, memcmp_~r~0#1, memcmp_~d~0#1.base, memcmp_~d~0#1.offset, memcmp_~s~0#1.base, memcmp_~s~0#1.offset;memcmp_~dst#1.base, memcmp_~dst#1.offset := memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset;memcmp_~src#1.base, memcmp_~src#1.offset := memcmp_#in~src#1.base, memcmp_#in~src#1.offset;memcmp_~count#1 := memcmp_#in~count#1;havoc memcmp_~r~0#1;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~dst#1.base, memcmp_~dst#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~src#1.base, memcmp_~src#1.offset;memcmp_#t~pre5#1 := 1 + memcmp_~count#1;memcmp_~count#1 := 1 + memcmp_~count#1;havoc memcmp_#t~pre5#1; 3224#L518-3 [2021-11-20 05:35:59,041 INFO L793 eck$LassoCheckResult]: Loop: 3224#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 3236#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 3223#L519 assume !(0 != memcmp_~r~0#1);havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;havoc memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset;memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;havoc memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset; 3224#L518-3 [2021-11-20 05:35:59,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:35:59,042 INFO L85 PathProgramCache]: Analyzing trace with hash 762752838, now seen corresponding path program 1 times [2021-11-20 05:35:59,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:35:59,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131184445] [2021-11-20 05:35:59,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:59,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:35:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:59,202 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 05:35:59,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:35:59,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131184445] [2021-11-20 05:35:59,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131184445] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:35:59,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876711729] [2021-11-20 05:35:59,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:35:59,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:35:59,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:35:59,204 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:35:59,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2021-11-20 05:35:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:35:59,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 62 conjunts are in the unsatisfiable core [2021-11-20 05:35:59,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:35:59,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-20 05:35:59,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Forceful destruction successful, exit code 0 [2021-11-20 05:36:00,824 INFO L354 Elim1Store]: treesize reduction 31, result has 20.5 percent of original size [2021-11-20 05:36:00,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 47 [2021-11-20 05:36:00,857 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 05:36:00,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:01,401 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 05:36:01,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 126 treesize of output 1 [2021-11-20 05:36:01,415 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 05:36:01,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876711729] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:36:01,416 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:36:01,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 11] total 33 [2021-11-20 05:36:01,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757635831] [2021-11-20 05:36:01,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:36:01,417 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 05:36:01,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:01,417 INFO L85 PathProgramCache]: Analyzing trace with hash 139186, now seen corresponding path program 3 times [2021-11-20 05:36:01,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:01,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754090967] [2021-11-20 05:36:01,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:01,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:01,422 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:36:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:01,427 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:36:01,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:01,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-20 05:36:01,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=939, Unknown=0, NotChecked=0, Total=1056 [2021-11-20 05:36:01,560 INFO L87 Difference]: Start difference. First operand 53 states and 62 transitions. cyclomatic complexity: 17 Second operand has 33 states, 33 states have (on average 3.212121212121212) internal successors, (106), 33 states have internal predecessors, (106), 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 05:36:02,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:02,255 INFO L93 Difference]: Finished difference Result 115 states and 129 transitions. [2021-11-20 05:36:02,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-20 05:36:02,256 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 115 states and 129 transitions. [2021-11-20 05:36:02,257 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 05:36:02,258 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 115 states to 93 states and 106 transitions. [2021-11-20 05:36:02,258 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-11-20 05:36:02,258 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2021-11-20 05:36:02,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 106 transitions. [2021-11-20 05:36:02,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:36:02,258 INFO L681 BuchiCegarLoop]: Abstraction has 93 states and 106 transitions. [2021-11-20 05:36:02,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 106 transitions. [2021-11-20 05:36:02,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 88. [2021-11-20 05:36:02,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 88 states have (on average 1.1477272727272727) internal successors, (101), 87 states have internal predecessors, (101), 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 05:36:02,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 101 transitions. [2021-11-20 05:36:02,261 INFO L704 BuchiCegarLoop]: Abstraction has 88 states and 101 transitions. [2021-11-20 05:36:02,261 INFO L587 BuchiCegarLoop]: Abstraction has 88 states and 101 transitions. [2021-11-20 05:36:02,261 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-11-20 05:36:02,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 88 states and 101 transitions. [2021-11-20 05:36:02,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 05:36:02,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:36:02,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:36:02,263 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:36:02,263 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 05:36:02,263 INFO L791 eck$LassoCheckResult]: Stem: 3708#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 3683#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 3684#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 3669#L544-3 assume !!(main_~i~2#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet22#1, main_~hay~0#1.base, main_~hay~0#1.offset + main_~i~2#1, 1);havoc main_#t~nondet22#1; 3670#L544-2 main_#t~post21#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post21#1;havoc main_#t~post21#1; 3671#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 3672#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 3680#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 3673#L552-3 assume !!(main_~i~3#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet26#1, main_~needle~0#1.base, main_~needle~0#1.offset + main_~i~3#1, 1);havoc main_#t~nondet26#1; 3674#L552-2 main_#t~post25#1 := main_~i~3#1;main_~i~3#1 := 1 + main_#t~post25#1;havoc main_#t~post25#1; 3675#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 3676#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 3677#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 3685#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3686#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 3699#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 3687#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3689#L510-1 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 3715#L510-5 strlen_#res#1 := strlen_~i~0#1; 3720#L511 strstr_#t~ret11#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~nl~0#1 := strstr_#t~ret11#1;havoc strstr_#t~ret11#1;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~haystack#1.base, strstr_~haystack#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 3752#L509-2 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 3692#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3693#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 3698#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 3694#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3695#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 3750#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 3748#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3696#L510-7 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 3697#L510-11 strlen_#res#1 := strlen_~i~0#1; 3701#L511-1 strstr_#t~ret12#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~hl~0#1 := strstr_#t~ret12#1;havoc strstr_#t~ret12#1;havoc strstr_~i~1#1; 3690#L530 assume !(0 == strstr_~nl~0#1 % 18446744073709551616); 3691#L531 assume !(strstr_~nl~0#1 % 18446744073709551616 > strstr_~hl~0#1 % 18446744073709551616);strstr_~i~1#1 := 1 + (strstr_~hl~0#1 - strstr_~nl~0#1); 3739#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 3733#L533 assume strstr_#t~short17#1;assume { :begin_inline_memcmp } true;memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset, memcmp_#in~src#1.base, memcmp_#in~src#1.offset, memcmp_#in~count#1 := strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1;havoc memcmp_#res#1;havoc memcmp_#t~pre5#1, memcmp_#t~mem7#1, memcmp_#t~mem8#1, memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset, memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset, memcmp_#t~pre6#1, memcmp_~dst#1.base, memcmp_~dst#1.offset, memcmp_~src#1.base, memcmp_~src#1.offset, memcmp_~count#1, memcmp_~r~0#1, memcmp_~d~0#1.base, memcmp_~d~0#1.offset, memcmp_~s~0#1.base, memcmp_~s~0#1.offset;memcmp_~dst#1.base, memcmp_~dst#1.offset := memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset;memcmp_~src#1.base, memcmp_~src#1.offset := memcmp_#in~src#1.base, memcmp_#in~src#1.offset;memcmp_~count#1 := memcmp_#in~count#1;havoc memcmp_~r~0#1;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~dst#1.base, memcmp_~dst#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~src#1.base, memcmp_~src#1.offset;memcmp_#t~pre5#1 := 1 + memcmp_~count#1;memcmp_~count#1 := 1 + memcmp_~count#1;havoc memcmp_#t~pre5#1; 3732#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 3735#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 3727#L519 assume 0 != memcmp_~r~0#1;havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#res#1 := memcmp_~r~0#1; 3726#L524 strstr_#t~ret16#1 := memcmp_#res#1;assume { :end_inline_memcmp } true;strstr_#t~short17#1 := 0 == strstr_#t~ret16#1; 3724#L533-2 assume !strstr_#t~short17#1;havoc strstr_#t~mem14#1;havoc strstr_#t~mem15#1;havoc strstr_#t~ret16#1;havoc strstr_#t~short17#1;strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;havoc strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset; 3722#L532-2 strstr_#t~pre13#1 := strstr_~i~1#1 - 1;strstr_~i~1#1 := strstr_~i~1#1 - 1;havoc strstr_#t~pre13#1; 3721#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 3710#L533 assume strstr_#t~short17#1;assume { :begin_inline_memcmp } true;memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset, memcmp_#in~src#1.base, memcmp_#in~src#1.offset, memcmp_#in~count#1 := strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1;havoc memcmp_#res#1;havoc memcmp_#t~pre5#1, memcmp_#t~mem7#1, memcmp_#t~mem8#1, memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset, memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset, memcmp_#t~pre6#1, memcmp_~dst#1.base, memcmp_~dst#1.offset, memcmp_~src#1.base, memcmp_~src#1.offset, memcmp_~count#1, memcmp_~r~0#1, memcmp_~d~0#1.base, memcmp_~d~0#1.offset, memcmp_~s~0#1.base, memcmp_~s~0#1.offset;memcmp_~dst#1.base, memcmp_~dst#1.offset := memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset;memcmp_~src#1.base, memcmp_~src#1.offset := memcmp_#in~src#1.base, memcmp_#in~src#1.offset;memcmp_~count#1 := memcmp_#in~count#1;havoc memcmp_~r~0#1;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~dst#1.base, memcmp_~dst#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~src#1.base, memcmp_~src#1.offset;memcmp_#t~pre5#1 := 1 + memcmp_~count#1;memcmp_~count#1 := 1 + memcmp_~count#1;havoc memcmp_#t~pre5#1; 3703#L518-3 [2021-11-20 05:36:02,264 INFO L793 eck$LassoCheckResult]: Loop: 3703#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 3716#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 3702#L519 assume !(0 != memcmp_~r~0#1);havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;havoc memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset;memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;havoc memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset; 3703#L518-3 [2021-11-20 05:36:02,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:02,264 INFO L85 PathProgramCache]: Analyzing trace with hash 717589665, now seen corresponding path program 2 times [2021-11-20 05:36:02,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:02,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405808820] [2021-11-20 05:36:02,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:02,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,360 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 05:36:02,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:02,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405808820] [2021-11-20 05:36:02,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405808820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:36:02,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:36:02,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:36:02,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116424370] [2021-11-20 05:36:02,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:36:02,385 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 05:36:02,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:02,385 INFO L85 PathProgramCache]: Analyzing trace with hash 139186, now seen corresponding path program 4 times [2021-11-20 05:36:02,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:02,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163509449] [2021-11-20 05:36:02,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:02,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:02,390 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:36:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:02,394 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:36:02,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:02,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:36:02,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:36:02,504 INFO L87 Difference]: Start difference. First operand 88 states and 101 transitions. cyclomatic complexity: 22 Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 05:36:02,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:02,581 INFO L93 Difference]: Finished difference Result 105 states and 118 transitions. [2021-11-20 05:36:02,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:36:02,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 118 transitions. [2021-11-20 05:36:02,583 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 05:36:02,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 101 states and 114 transitions. [2021-11-20 05:36:02,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-11-20 05:36:02,584 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-11-20 05:36:02,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 114 transitions. [2021-11-20 05:36:02,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:36:02,584 INFO L681 BuchiCegarLoop]: Abstraction has 101 states and 114 transitions. [2021-11-20 05:36:02,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 114 transitions. [2021-11-20 05:36:02,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2021-11-20 05:36:02,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 93 states have (on average 1.1397849462365592) internal successors, (106), 92 states have internal predecessors, (106), 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 05:36:02,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 106 transitions. [2021-11-20 05:36:02,590 INFO L704 BuchiCegarLoop]: Abstraction has 93 states and 106 transitions. [2021-11-20 05:36:02,590 INFO L587 BuchiCegarLoop]: Abstraction has 93 states and 106 transitions. [2021-11-20 05:36:02,590 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-11-20 05:36:02,590 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states and 106 transitions. [2021-11-20 05:36:02,591 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 05:36:02,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:36:02,591 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:36:02,597 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:36:02,597 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 05:36:02,598 INFO L791 eck$LassoCheckResult]: Stem: 3912#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 3886#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 3887#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 3874#L544-3 assume !!(main_~i~2#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet22#1, main_~hay~0#1.base, main_~hay~0#1.offset + main_~i~2#1, 1);havoc main_#t~nondet22#1; 3875#L544-2 main_#t~post21#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post21#1;havoc main_#t~post21#1; 3876#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 3877#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 3885#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 3878#L552-3 assume !!(main_~i~3#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet26#1, main_~needle~0#1.base, main_~needle~0#1.offset + main_~i~3#1, 1);havoc main_#t~nondet26#1; 3879#L552-2 main_#t~post25#1 := main_~i~3#1;main_~i~3#1 := 1 + main_#t~post25#1;havoc main_#t~post25#1; 3880#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 3881#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 3882#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 3890#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3891#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 3939#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 3938#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3937#L510-1 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 3936#L510-5 strlen_#res#1 := strlen_~i~0#1; 3935#L511 strstr_#t~ret11#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~nl~0#1 := strstr_#t~ret11#1;havoc strstr_#t~ret11#1;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~haystack#1.base, strstr_~haystack#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 3904#L509-2 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 3896#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3897#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 3902#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 3898#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3899#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 3932#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 3931#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 3900#L510-7 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 3901#L510-11 strlen_#res#1 := strlen_~i~0#1; 3905#L511-1 strstr_#t~ret12#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~hl~0#1 := strstr_#t~ret12#1;havoc strstr_#t~ret12#1;havoc strstr_~i~1#1; 3895#L530 assume !(0 == strstr_~nl~0#1 % 18446744073709551616); 3888#L531 assume !(strstr_~nl~0#1 % 18446744073709551616 > strstr_~hl~0#1 % 18446744073709551616);strstr_~i~1#1 := 1 + (strstr_~hl~0#1 - strstr_~nl~0#1); 3889#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 3922#L533 assume strstr_#t~short17#1;assume { :begin_inline_memcmp } true;memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset, memcmp_#in~src#1.base, memcmp_#in~src#1.offset, memcmp_#in~count#1 := strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1;havoc memcmp_#res#1;havoc memcmp_#t~pre5#1, memcmp_#t~mem7#1, memcmp_#t~mem8#1, memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset, memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset, memcmp_#t~pre6#1, memcmp_~dst#1.base, memcmp_~dst#1.offset, memcmp_~src#1.base, memcmp_~src#1.offset, memcmp_~count#1, memcmp_~r~0#1, memcmp_~d~0#1.base, memcmp_~d~0#1.offset, memcmp_~s~0#1.base, memcmp_~s~0#1.offset;memcmp_~dst#1.base, memcmp_~dst#1.offset := memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset;memcmp_~src#1.base, memcmp_~src#1.offset := memcmp_#in~src#1.base, memcmp_#in~src#1.offset;memcmp_~count#1 := memcmp_#in~count#1;havoc memcmp_~r~0#1;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~dst#1.base, memcmp_~dst#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~src#1.base, memcmp_~src#1.offset;memcmp_#t~pre5#1 := 1 + memcmp_~count#1;memcmp_~count#1 := 1 + memcmp_~count#1;havoc memcmp_#t~pre5#1; 3920#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 3921#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 3951#L519 assume !(0 != memcmp_~r~0#1);havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;havoc memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset;memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;havoc memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset; 3947#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 3944#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 3941#L519 assume 0 != memcmp_~r~0#1;havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#res#1 := memcmp_~r~0#1; 3930#L524 strstr_#t~ret16#1 := memcmp_#res#1;assume { :end_inline_memcmp } true;strstr_#t~short17#1 := 0 == strstr_#t~ret16#1; 3928#L533-2 assume !strstr_#t~short17#1;havoc strstr_#t~mem14#1;havoc strstr_#t~mem15#1;havoc strstr_#t~ret16#1;havoc strstr_#t~short17#1;strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;havoc strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset; 3926#L532-2 strstr_#t~pre13#1 := strstr_~i~1#1 - 1;strstr_~i~1#1 := strstr_~i~1#1 - 1;havoc strstr_#t~pre13#1; 3925#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 3914#L533 assume strstr_#t~short17#1;assume { :begin_inline_memcmp } true;memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset, memcmp_#in~src#1.base, memcmp_#in~src#1.offset, memcmp_#in~count#1 := strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1;havoc memcmp_#res#1;havoc memcmp_#t~pre5#1, memcmp_#t~mem7#1, memcmp_#t~mem8#1, memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset, memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset, memcmp_#t~pre6#1, memcmp_~dst#1.base, memcmp_~dst#1.offset, memcmp_~src#1.base, memcmp_~src#1.offset, memcmp_~count#1, memcmp_~r~0#1, memcmp_~d~0#1.base, memcmp_~d~0#1.offset, memcmp_~s~0#1.base, memcmp_~s~0#1.offset;memcmp_~dst#1.base, memcmp_~dst#1.offset := memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset;memcmp_~src#1.base, memcmp_~src#1.offset := memcmp_#in~src#1.base, memcmp_#in~src#1.offset;memcmp_~count#1 := memcmp_#in~count#1;havoc memcmp_~r~0#1;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~dst#1.base, memcmp_~dst#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~src#1.base, memcmp_~src#1.offset;memcmp_#t~pre5#1 := 1 + memcmp_~count#1;memcmp_~count#1 := 1 + memcmp_~count#1;havoc memcmp_#t~pre5#1; 3907#L518-3 [2021-11-20 05:36:02,598 INFO L793 eck$LassoCheckResult]: Loop: 3907#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 3919#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 3906#L519 assume !(0 != memcmp_~r~0#1);havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;havoc memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset;memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;havoc memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset; 3907#L518-3 [2021-11-20 05:36:02,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:02,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1780692618, now seen corresponding path program 1 times [2021-11-20 05:36:02,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:02,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657895398] [2021-11-20 05:36:02,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:02,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,728 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 05:36:02,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:02,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657895398] [2021-11-20 05:36:02,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657895398] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:36:02,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468889277] [2021-11-20 05:36:02,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:02,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:36:02,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:02,730 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:36:02,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2021-11-20 05:36:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:02,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-20 05:36:02,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:02,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 05:36:02,955 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-20 05:36:02,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2021-11-20 05:36:02,960 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 05:36:02,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-20 05:36:03,147 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-20 05:36:03,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:03,468 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-20 05:36:03,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-20 05:36:03,524 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-20 05:36:03,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468889277] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:36:03,525 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:36:03,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 26 [2021-11-20 05:36:03,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034495867] [2021-11-20 05:36:03,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:36:03,526 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 05:36:03,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:03,527 INFO L85 PathProgramCache]: Analyzing trace with hash 139186, now seen corresponding path program 5 times [2021-11-20 05:36:03,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:03,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245832268] [2021-11-20 05:36:03,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:03,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:03,532 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:36:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:03,536 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:36:03,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:03,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-20 05:36:03,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=570, Unknown=0, NotChecked=0, Total=650 [2021-11-20 05:36:03,649 INFO L87 Difference]: Start difference. First operand 93 states and 106 transitions. cyclomatic complexity: 22 Second operand has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 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 05:36:04,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:04,420 INFO L93 Difference]: Finished difference Result 229 states and 258 transitions. [2021-11-20 05:36:04,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-20 05:36:04,421 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 229 states and 258 transitions. [2021-11-20 05:36:04,423 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-11-20 05:36:04,424 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 229 states to 187 states and 214 transitions. [2021-11-20 05:36:04,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2021-11-20 05:36:04,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2021-11-20 05:36:04,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 187 states and 214 transitions. [2021-11-20 05:36:04,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:36:04,425 INFO L681 BuchiCegarLoop]: Abstraction has 187 states and 214 transitions. [2021-11-20 05:36:04,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states and 214 transitions. [2021-11-20 05:36:04,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 109. [2021-11-20 05:36:04,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.1376146788990826) internal successors, (124), 108 states have internal predecessors, (124), 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 05:36:04,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 124 transitions. [2021-11-20 05:36:04,428 INFO L704 BuchiCegarLoop]: Abstraction has 109 states and 124 transitions. [2021-11-20 05:36:04,428 INFO L587 BuchiCegarLoop]: Abstraction has 109 states and 124 transitions. [2021-11-20 05:36:04,428 INFO L425 BuchiCegarLoop]: ======== Iteration 18============ [2021-11-20 05:36:04,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 124 transitions. [2021-11-20 05:36:04,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 05:36:04,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:36:04,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:36:04,430 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:36:04,430 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 05:36:04,430 INFO L791 eck$LassoCheckResult]: Stem: 4589#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 4566#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 4567#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 4548#L544-3 assume !!(main_~i~2#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet22#1, main_~hay~0#1.base, main_~hay~0#1.offset + main_~i~2#1, 1);havoc main_#t~nondet22#1; 4549#L544-2 main_#t~post21#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post21#1;havoc main_#t~post21#1; 4550#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 4551#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 4626#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 4554#L552-3 assume !!(main_~i~3#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet26#1, main_~needle~0#1.base, main_~needle~0#1.offset + main_~i~3#1, 1);havoc main_#t~nondet26#1; 4555#L552-2 main_#t~post25#1 := main_~i~3#1;main_~i~3#1 := 1 + main_#t~post25#1;havoc main_#t~post25#1; 4625#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 4624#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 4623#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 4622#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 4601#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 4580#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 4570#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 4571#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 4619#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 4617#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 4599#L510-1 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 4600#L510-5 strlen_#res#1 := strlen_~i~0#1; 4559#L511 strstr_#t~ret11#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~nl~0#1 := strstr_#t~ret11#1;havoc strstr_#t~ret11#1;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~haystack#1.base, strstr_~haystack#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 4560#L509-2 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 4611#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 4610#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 4595#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 4596#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 4576#L510-7 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 4578#L510-11 strlen_#res#1 := strlen_~i~0#1; 4582#L511-1 strstr_#t~ret12#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~hl~0#1 := strstr_#t~ret12#1;havoc strstr_#t~ret12#1;havoc strstr_~i~1#1; 4572#L530 assume !(0 == strstr_~nl~0#1 % 18446744073709551616); 4564#L531 assume !(strstr_~nl~0#1 % 18446744073709551616 > strstr_~hl~0#1 % 18446744073709551616);strstr_~i~1#1 := 1 + (strstr_~hl~0#1 - strstr_~nl~0#1); 4565#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 4639#L533 assume strstr_#t~short17#1;assume { :begin_inline_memcmp } true;memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset, memcmp_#in~src#1.base, memcmp_#in~src#1.offset, memcmp_#in~count#1 := strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1;havoc memcmp_#res#1;havoc memcmp_#t~pre5#1, memcmp_#t~mem7#1, memcmp_#t~mem8#1, memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset, memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset, memcmp_#t~pre6#1, memcmp_~dst#1.base, memcmp_~dst#1.offset, memcmp_~src#1.base, memcmp_~src#1.offset, memcmp_~count#1, memcmp_~r~0#1, memcmp_~d~0#1.base, memcmp_~d~0#1.offset, memcmp_~s~0#1.base, memcmp_~s~0#1.offset;memcmp_~dst#1.base, memcmp_~dst#1.offset := memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset;memcmp_~src#1.base, memcmp_~src#1.offset := memcmp_#in~src#1.base, memcmp_#in~src#1.offset;memcmp_~count#1 := memcmp_#in~count#1;havoc memcmp_~r~0#1;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~dst#1.base, memcmp_~dst#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~src#1.base, memcmp_~src#1.offset;memcmp_#t~pre5#1 := 1 + memcmp_~count#1;memcmp_~count#1 := 1 + memcmp_~count#1;havoc memcmp_#t~pre5#1; 4638#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 4636#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 4637#L519 assume !(0 != memcmp_~r~0#1);havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;havoc memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset;memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;havoc memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset; 4635#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 4634#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 4633#L519 assume 0 != memcmp_~r~0#1;havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#res#1 := memcmp_~r~0#1; 4593#L524 strstr_#t~ret16#1 := memcmp_#res#1;assume { :end_inline_memcmp } true;strstr_#t~short17#1 := 0 == strstr_#t~ret16#1; 4594#L533-2 assume !strstr_#t~short17#1;havoc strstr_#t~mem14#1;havoc strstr_#t~mem15#1;havoc strstr_#t~ret16#1;havoc strstr_#t~short17#1;strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;havoc strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset; 4647#L532-2 strstr_#t~pre13#1 := strstr_~i~1#1 - 1;strstr_~i~1#1 := strstr_~i~1#1 - 1;havoc strstr_#t~pre13#1; 4648#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 4631#L533 assume !strstr_#t~short17#1; 4630#L533-2 assume !strstr_#t~short17#1;havoc strstr_#t~mem14#1;havoc strstr_#t~mem15#1;havoc strstr_#t~ret16#1;havoc strstr_#t~short17#1;strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;havoc strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset; 4628#L532-2 strstr_#t~pre13#1 := strstr_~i~1#1 - 1;strstr_~i~1#1 := strstr_~i~1#1 - 1;havoc strstr_#t~pre13#1; 4627#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 4591#L533 assume strstr_#t~short17#1;assume { :begin_inline_memcmp } true;memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset, memcmp_#in~src#1.base, memcmp_#in~src#1.offset, memcmp_#in~count#1 := strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1;havoc memcmp_#res#1;havoc memcmp_#t~pre5#1, memcmp_#t~mem7#1, memcmp_#t~mem8#1, memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset, memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset, memcmp_#t~pre6#1, memcmp_~dst#1.base, memcmp_~dst#1.offset, memcmp_~src#1.base, memcmp_~src#1.offset, memcmp_~count#1, memcmp_~r~0#1, memcmp_~d~0#1.base, memcmp_~d~0#1.offset, memcmp_~s~0#1.base, memcmp_~s~0#1.offset;memcmp_~dst#1.base, memcmp_~dst#1.offset := memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset;memcmp_~src#1.base, memcmp_~src#1.offset := memcmp_#in~src#1.base, memcmp_#in~src#1.offset;memcmp_~count#1 := memcmp_#in~count#1;havoc memcmp_~r~0#1;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~dst#1.base, memcmp_~dst#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~src#1.base, memcmp_~src#1.offset;memcmp_#t~pre5#1 := 1 + memcmp_~count#1;memcmp_~count#1 := 1 + memcmp_~count#1;havoc memcmp_#t~pre5#1; 4584#L518-3 [2021-11-20 05:36:04,430 INFO L793 eck$LassoCheckResult]: Loop: 4584#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 4602#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 4583#L519 assume !(0 != memcmp_~r~0#1);havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;havoc memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset;memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;havoc memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset; 4584#L518-3 [2021-11-20 05:36:04,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:04,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1191678414, now seen corresponding path program 1 times [2021-11-20 05:36:04,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:04,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442299949] [2021-11-20 05:36:04,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:04,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:04,585 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 05:36:04,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:04,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442299949] [2021-11-20 05:36:04,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442299949] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:36:04,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756212980] [2021-11-20 05:36:04,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:04,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:36:04,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:04,592 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:36:04,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2021-11-20 05:36:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:04,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-20 05:36:04,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:04,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 05:36:04,894 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 05:36:04,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:05,061 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 05:36:05,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756212980] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:36:05,061 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:36:05,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 18 [2021-11-20 05:36:05,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345447767] [2021-11-20 05:36:05,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:36:05,062 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 05:36:05,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:05,062 INFO L85 PathProgramCache]: Analyzing trace with hash 139186, now seen corresponding path program 6 times [2021-11-20 05:36:05,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:05,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327871635] [2021-11-20 05:36:05,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:05,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:05,069 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:36:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:05,075 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:36:05,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:05,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-20 05:36:05,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2021-11-20 05:36:05,204 INFO L87 Difference]: Start difference. First operand 109 states and 124 transitions. cyclomatic complexity: 26 Second operand has 18 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 states have internal predecessors, (62), 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 05:36:05,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:05,341 INFO L93 Difference]: Finished difference Result 133 states and 148 transitions. [2021-11-20 05:36:05,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:36:05,342 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 133 states and 148 transitions. [2021-11-20 05:36:05,343 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 05:36:05,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 133 states to 115 states and 130 transitions. [2021-11-20 05:36:05,345 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2021-11-20 05:36:05,345 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2021-11-20 05:36:05,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 130 transitions. [2021-11-20 05:36:05,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:36:05,345 INFO L681 BuchiCegarLoop]: Abstraction has 115 states and 130 transitions. [2021-11-20 05:36:05,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 130 transitions. [2021-11-20 05:36:05,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2021-11-20 05:36:05,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 113 states have (on average 1.1327433628318584) internal successors, (128), 112 states have internal predecessors, (128), 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 05:36:05,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 128 transitions. [2021-11-20 05:36:05,349 INFO L704 BuchiCegarLoop]: Abstraction has 113 states and 128 transitions. [2021-11-20 05:36:05,349 INFO L587 BuchiCegarLoop]: Abstraction has 113 states and 128 transitions. [2021-11-20 05:36:05,349 INFO L425 BuchiCegarLoop]: ======== Iteration 19============ [2021-11-20 05:36:05,349 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states and 128 transitions. [2021-11-20 05:36:05,350 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 05:36:05,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:36:05,350 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:36:05,351 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:36:05,351 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 05:36:05,351 INFO L791 eck$LassoCheckResult]: Stem: 5151#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 5127#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 5128#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 5113#L544-3 assume !!(main_~i~2#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet22#1, main_~hay~0#1.base, main_~hay~0#1.offset + main_~i~2#1, 1);havoc main_#t~nondet22#1; 5114#L544-2 main_#t~post21#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post21#1;havoc main_#t~post21#1; 5199#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 5198#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 5197#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 5196#L552-3 assume !!(main_~i~3#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet26#1, main_~needle~0#1.base, main_~needle~0#1.offset + main_~i~3#1, 1);havoc main_#t~nondet26#1; 5194#L552-2 main_#t~post25#1 := main_~i~3#1;main_~i~3#1 := 1 + main_#t~post25#1;havoc main_#t~post25#1; 5192#L552-3 assume !!(main_~i~3#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet26#1, main_~needle~0#1.base, main_~needle~0#1.offset + main_~i~3#1, 1);havoc main_#t~nondet26#1; 5191#L552-2 main_#t~post25#1 := main_~i~3#1;main_~i~3#1 := 1 + main_#t~post25#1;havoc main_#t~post25#1; 5190#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 5189#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 5188#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 5187#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 5186#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 5185#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 5184#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 5178#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 5180#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 5177#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 5174#L510-1 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 5172#L510-5 strlen_#res#1 := strlen_~i~0#1; 5171#L511 strstr_#t~ret11#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~nl~0#1 := strstr_#t~ret11#1;havoc strstr_#t~ret11#1;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~haystack#1.base, strstr_~haystack#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 5170#L509-2 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 5169#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 5168#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 5157#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 5158#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 5139#L510-7 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 5141#L510-11 strlen_#res#1 := strlen_~i~0#1; 5144#L511-1 strstr_#t~ret12#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~hl~0#1 := strstr_#t~ret12#1;havoc strstr_#t~ret12#1;havoc strstr_~i~1#1; 5135#L530 assume !(0 == strstr_~nl~0#1 % 18446744073709551616); 5129#L531 assume !(strstr_~nl~0#1 % 18446744073709551616 > strstr_~hl~0#1 % 18446744073709551616);strstr_~i~1#1 := 1 + (strstr_~hl~0#1 - strstr_~nl~0#1); 5130#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 5208#L533 assume strstr_#t~short17#1;assume { :begin_inline_memcmp } true;memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset, memcmp_#in~src#1.base, memcmp_#in~src#1.offset, memcmp_#in~count#1 := strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1;havoc memcmp_#res#1;havoc memcmp_#t~pre5#1, memcmp_#t~mem7#1, memcmp_#t~mem8#1, memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset, memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset, memcmp_#t~pre6#1, memcmp_~dst#1.base, memcmp_~dst#1.offset, memcmp_~src#1.base, memcmp_~src#1.offset, memcmp_~count#1, memcmp_~r~0#1, memcmp_~d~0#1.base, memcmp_~d~0#1.offset, memcmp_~s~0#1.base, memcmp_~s~0#1.offset;memcmp_~dst#1.base, memcmp_~dst#1.offset := memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset;memcmp_~src#1.base, memcmp_~src#1.offset := memcmp_#in~src#1.base, memcmp_#in~src#1.offset;memcmp_~count#1 := memcmp_#in~count#1;havoc memcmp_~r~0#1;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~dst#1.base, memcmp_~dst#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~src#1.base, memcmp_~src#1.offset;memcmp_#t~pre5#1 := 1 + memcmp_~count#1;memcmp_~count#1 := 1 + memcmp_~count#1;havoc memcmp_#t~pre5#1; 5207#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 5205#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 5206#L519 assume !(0 != memcmp_~r~0#1);havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;havoc memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset;memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;havoc memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset; 5204#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 5203#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 5202#L519 assume 0 != memcmp_~r~0#1;havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#res#1 := memcmp_~r~0#1; 5156#L524 strstr_#t~ret16#1 := memcmp_#res#1;assume { :end_inline_memcmp } true;strstr_#t~short17#1 := 0 == strstr_#t~ret16#1; 5149#L533-2 assume !strstr_#t~short17#1;havoc strstr_#t~mem14#1;havoc strstr_#t~mem15#1;havoc strstr_#t~ret16#1;havoc strstr_#t~short17#1;strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;havoc strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset; 5150#L532-2 strstr_#t~pre13#1 := strstr_~i~1#1 - 1;strstr_~i~1#1 := strstr_~i~1#1 - 1;havoc strstr_#t~pre13#1; 5152#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 5181#L533 assume !strstr_#t~short17#1; 5179#L533-2 assume !strstr_#t~short17#1;havoc strstr_#t~mem14#1;havoc strstr_#t~mem15#1;havoc strstr_#t~ret16#1;havoc strstr_#t~short17#1;strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;havoc strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset; 5175#L532-2 strstr_#t~pre13#1 := strstr_~i~1#1 - 1;strstr_~i~1#1 := strstr_~i~1#1 - 1;havoc strstr_#t~pre13#1; 5173#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 5153#L533 assume strstr_#t~short17#1;assume { :begin_inline_memcmp } true;memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset, memcmp_#in~src#1.base, memcmp_#in~src#1.offset, memcmp_#in~count#1 := strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1;havoc memcmp_#res#1;havoc memcmp_#t~pre5#1, memcmp_#t~mem7#1, memcmp_#t~mem8#1, memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset, memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset, memcmp_#t~pre6#1, memcmp_~dst#1.base, memcmp_~dst#1.offset, memcmp_~src#1.base, memcmp_~src#1.offset, memcmp_~count#1, memcmp_~r~0#1, memcmp_~d~0#1.base, memcmp_~d~0#1.offset, memcmp_~s~0#1.base, memcmp_~s~0#1.offset;memcmp_~dst#1.base, memcmp_~dst#1.offset := memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset;memcmp_~src#1.base, memcmp_~src#1.offset := memcmp_#in~src#1.base, memcmp_#in~src#1.offset;memcmp_~count#1 := memcmp_#in~count#1;havoc memcmp_~r~0#1;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~dst#1.base, memcmp_~dst#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~src#1.base, memcmp_~src#1.offset;memcmp_#t~pre5#1 := 1 + memcmp_~count#1;memcmp_~count#1 := 1 + memcmp_~count#1;havoc memcmp_#t~pre5#1; 5146#L518-3 [2021-11-20 05:36:05,351 INFO L793 eck$LassoCheckResult]: Loop: 5146#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 5161#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 5145#L519 assume !(0 != memcmp_~r~0#1);havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;havoc memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset;memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;havoc memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset; 5146#L518-3 [2021-11-20 05:36:05,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:05,352 INFO L85 PathProgramCache]: Analyzing trace with hash 283927796, now seen corresponding path program 2 times [2021-11-20 05:36:05,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:05,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971724133] [2021-11-20 05:36:05,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:05,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:05,535 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-20 05:36:05,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:05,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971724133] [2021-11-20 05:36:05,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971724133] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:36:05,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165944829] [2021-11-20 05:36:05,535 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:36:05,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:36:05,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:05,537 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:36:05,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2021-11-20 05:36:05,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 05:36:05,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:36:05,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 05:36:05,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:05,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 05:36:05,750 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-20 05:36:05,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 24 [2021-11-20 05:36:05,758 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 05:36:05,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-20 05:36:06,045 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-20 05:36:06,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:06,327 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-20 05:36:06,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-20 05:36:06,453 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-20 05:36:06,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165944829] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:36:06,453 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:36:06,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 28 [2021-11-20 05:36:06,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010192719] [2021-11-20 05:36:06,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:36:06,454 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 05:36:06,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:06,454 INFO L85 PathProgramCache]: Analyzing trace with hash 139186, now seen corresponding path program 7 times [2021-11-20 05:36:06,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:06,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597672663] [2021-11-20 05:36:06,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:06,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:06,459 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:36:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:06,464 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:36:06,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:06,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-20 05:36:06,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=667, Unknown=0, NotChecked=0, Total=756 [2021-11-20 05:36:06,588 INFO L87 Difference]: Start difference. First operand 113 states and 128 transitions. cyclomatic complexity: 26 Second operand has 28 states, 28 states have (on average 4.142857142857143) internal successors, (116), 28 states have internal predecessors, (116), 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 05:36:07,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:07,714 INFO L93 Difference]: Finished difference Result 310 states and 349 transitions. [2021-11-20 05:36:07,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-20 05:36:07,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 310 states and 349 transitions. [2021-11-20 05:36:07,718 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-11-20 05:36:07,720 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 310 states to 235 states and 271 transitions. [2021-11-20 05:36:07,720 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 75 [2021-11-20 05:36:07,720 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 75 [2021-11-20 05:36:07,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 235 states and 271 transitions. [2021-11-20 05:36:07,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:36:07,720 INFO L681 BuchiCegarLoop]: Abstraction has 235 states and 271 transitions. [2021-11-20 05:36:07,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states and 271 transitions. [2021-11-20 05:36:07,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 100. [2021-11-20 05:36:07,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 100 states have (on average 1.13) internal successors, (113), 99 states have internal predecessors, (113), 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 05:36:07,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 113 transitions. [2021-11-20 05:36:07,724 INFO L704 BuchiCegarLoop]: Abstraction has 100 states and 113 transitions. [2021-11-20 05:36:07,724 INFO L587 BuchiCegarLoop]: Abstraction has 100 states and 113 transitions. [2021-11-20 05:36:07,725 INFO L425 BuchiCegarLoop]: ======== Iteration 20============ [2021-11-20 05:36:07,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 113 transitions. [2021-11-20 05:36:07,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 05:36:07,725 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:36:07,725 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:36:07,726 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:36:07,727 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 05:36:07,727 INFO L791 eck$LassoCheckResult]: Stem: 5969#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 5944#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 5945#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 5928#L544-3 assume !!(main_~i~2#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet22#1, main_~hay~0#1.base, main_~hay~0#1.offset + main_~i~2#1, 1);havoc main_#t~nondet22#1; 5929#L544-2 main_#t~post21#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post21#1;havoc main_#t~post21#1; 5930#L544-3 assume !!(main_~i~2#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet22#1, main_~hay~0#1.base, main_~hay~0#1.offset + main_~i~2#1, 1);havoc main_#t~nondet22#1; 5931#L544-2 main_#t~post21#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post21#1;havoc main_#t~post21#1; 5984#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 5940#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 5941#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 5932#L552-3 assume !!(main_~i~3#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet26#1, main_~needle~0#1.base, main_~needle~0#1.offset + main_~i~3#1, 1);havoc main_#t~nondet26#1; 5933#L552-2 main_#t~post25#1 := main_~i~3#1;main_~i~3#1 := 1 + main_#t~post25#1;havoc main_#t~post25#1; 5934#L552-3 assume !!(main_~i~3#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet26#1, main_~needle~0#1.base, main_~needle~0#1.offset + main_~i~3#1, 1);havoc main_#t~nondet26#1; 5935#L552-2 main_#t~post25#1 := main_~i~3#1;main_~i~3#1 := 1 + main_#t~post25#1;havoc main_#t~post25#1; 5975#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 5938#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 5939#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 5946#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 5947#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 5959#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 5948#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 5949#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 5990#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 5985#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 5986#L510-1 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 5982#L510-5 strlen_#res#1 := strlen_~i~0#1; 5983#L511 strstr_#t~ret11#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~nl~0#1 := strstr_#t~ret11#1;havoc strstr_#t~ret11#1;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~haystack#1.base, strstr_~haystack#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 5960#L509-2 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 5961#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 5957#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 5958#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 5953#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 5954#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 5992#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 5991#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 5955#L510-7 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 5956#L510-11 strlen_#res#1 := strlen_~i~0#1; 5962#L511-1 strstr_#t~ret12#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~hl~0#1 := strstr_#t~ret12#1;havoc strstr_#t~ret12#1;havoc strstr_~i~1#1; 5950#L530 assume !(0 == strstr_~nl~0#1 % 18446744073709551616); 5942#L531 assume !(strstr_~nl~0#1 % 18446744073709551616 > strstr_~hl~0#1 % 18446744073709551616);strstr_~i~1#1 := 1 + (strstr_~hl~0#1 - strstr_~nl~0#1); 5943#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 5981#L533 assume strstr_#t~short17#1;assume { :begin_inline_memcmp } true;memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset, memcmp_#in~src#1.base, memcmp_#in~src#1.offset, memcmp_#in~count#1 := strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1;havoc memcmp_#res#1;havoc memcmp_#t~pre5#1, memcmp_#t~mem7#1, memcmp_#t~mem8#1, memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset, memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset, memcmp_#t~pre6#1, memcmp_~dst#1.base, memcmp_~dst#1.offset, memcmp_~src#1.base, memcmp_~src#1.offset, memcmp_~count#1, memcmp_~r~0#1, memcmp_~d~0#1.base, memcmp_~d~0#1.offset, memcmp_~s~0#1.base, memcmp_~s~0#1.offset;memcmp_~dst#1.base, memcmp_~dst#1.offset := memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset;memcmp_~src#1.base, memcmp_~src#1.offset := memcmp_#in~src#1.base, memcmp_#in~src#1.offset;memcmp_~count#1 := memcmp_#in~count#1;havoc memcmp_~r~0#1;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~dst#1.base, memcmp_~dst#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~src#1.base, memcmp_~src#1.offset;memcmp_#t~pre5#1 := 1 + memcmp_~count#1;memcmp_~count#1 := 1 + memcmp_~count#1;havoc memcmp_#t~pre5#1; 5979#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 5980#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 5965#L519 assume !(0 != memcmp_~r~0#1);havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;havoc memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset;memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;havoc memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset; 5966#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 6019#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 6015#L519 assume 0 != memcmp_~r~0#1;havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#res#1 := memcmp_~r~0#1; 5998#L524 strstr_#t~ret16#1 := memcmp_#res#1;assume { :end_inline_memcmp } true;strstr_#t~short17#1 := 0 == strstr_#t~ret16#1; 5996#L533-2 assume !strstr_#t~short17#1;havoc strstr_#t~mem14#1;havoc strstr_#t~mem15#1;havoc strstr_#t~ret16#1;havoc strstr_#t~short17#1;strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;havoc strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset; 5994#L532-2 strstr_#t~pre13#1 := strstr_~i~1#1 - 1;strstr_~i~1#1 := strstr_~i~1#1 - 1;havoc strstr_#t~pre13#1; 5993#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 5971#L533 assume strstr_#t~short17#1;assume { :begin_inline_memcmp } true;memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset, memcmp_#in~src#1.base, memcmp_#in~src#1.offset, memcmp_#in~count#1 := strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1;havoc memcmp_#res#1;havoc memcmp_#t~pre5#1, memcmp_#t~mem7#1, memcmp_#t~mem8#1, memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset, memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset, memcmp_#t~pre6#1, memcmp_~dst#1.base, memcmp_~dst#1.offset, memcmp_~src#1.base, memcmp_~src#1.offset, memcmp_~count#1, memcmp_~r~0#1, memcmp_~d~0#1.base, memcmp_~d~0#1.offset, memcmp_~s~0#1.base, memcmp_~s~0#1.offset;memcmp_~dst#1.base, memcmp_~dst#1.offset := memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset;memcmp_~src#1.base, memcmp_~src#1.offset := memcmp_#in~src#1.base, memcmp_#in~src#1.offset;memcmp_~count#1 := memcmp_#in~count#1;havoc memcmp_~r~0#1;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~dst#1.base, memcmp_~dst#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~src#1.base, memcmp_~src#1.offset;memcmp_#t~pre5#1 := 1 + memcmp_~count#1;memcmp_~count#1 := 1 + memcmp_~count#1;havoc memcmp_#t~pre5#1; 5964#L518-3 [2021-11-20 05:36:07,727 INFO L793 eck$LassoCheckResult]: Loop: 5964#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 5978#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 5963#L519 assume !(0 != memcmp_~r~0#1);havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;havoc memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset;memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;havoc memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset; 5964#L518-3 [2021-11-20 05:36:07,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:07,728 INFO L85 PathProgramCache]: Analyzing trace with hash -131927407, now seen corresponding path program 2 times [2021-11-20 05:36:07,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:07,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385826417] [2021-11-20 05:36:07,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:07,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:07,999 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 05:36:07,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:07,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385826417] [2021-11-20 05:36:07,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385826417] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:36:07,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678829990] [2021-11-20 05:36:07,999 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:36:07,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:36:08,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:08,007 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:36:08,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2021-11-20 05:36:08,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 05:36:08,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:36:08,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 05:36:08,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:08,540 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 05:36:08,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:08,961 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 05:36:08,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678829990] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:36:08,961 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:36:08,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 31 [2021-11-20 05:36:08,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383841864] [2021-11-20 05:36:08,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:36:08,962 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-20 05:36:08,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:08,963 INFO L85 PathProgramCache]: Analyzing trace with hash 139186, now seen corresponding path program 8 times [2021-11-20 05:36:08,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:08,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091191760] [2021-11-20 05:36:08,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:08,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:08,967 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:36:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:36:08,979 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:36:09,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:36:09,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-20 05:36:09,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2021-11-20 05:36:09,104 INFO L87 Difference]: Start difference. First operand 100 states and 113 transitions. cyclomatic complexity: 22 Second operand has 31 states, 31 states have (on average 3.032258064516129) internal successors, (94), 31 states have internal predecessors, (94), 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 05:36:09,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:36:09,401 INFO L93 Difference]: Finished difference Result 223 states and 254 transitions. [2021-11-20 05:36:09,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 05:36:09,411 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223 states and 254 transitions. [2021-11-20 05:36:09,413 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-11-20 05:36:09,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223 states to 202 states and 232 transitions. [2021-11-20 05:36:09,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 64 [2021-11-20 05:36:09,415 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2021-11-20 05:36:09,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 202 states and 232 transitions. [2021-11-20 05:36:09,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 05:36:09,416 INFO L681 BuchiCegarLoop]: Abstraction has 202 states and 232 transitions. [2021-11-20 05:36:09,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states and 232 transitions. [2021-11-20 05:36:09,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 103. [2021-11-20 05:36:09,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 103 states have (on average 1.1262135922330097) internal successors, (116), 102 states have internal predecessors, (116), 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 05:36:09,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 116 transitions. [2021-11-20 05:36:09,420 INFO L704 BuchiCegarLoop]: Abstraction has 103 states and 116 transitions. [2021-11-20 05:36:09,420 INFO L587 BuchiCegarLoop]: Abstraction has 103 states and 116 transitions. [2021-11-20 05:36:09,420 INFO L425 BuchiCegarLoop]: ======== Iteration 21============ [2021-11-20 05:36:09,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 103 states and 116 transitions. [2021-11-20 05:36:09,420 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 05:36:09,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:36:09,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:36:09,421 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:36:09,421 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 05:36:09,422 INFO L791 eck$LassoCheckResult]: Stem: 6648#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 6622#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet19#1, main_#t~malloc20#1.base, main_#t~malloc20#1.offset, main_#t~nondet22#1, main_#t~post21#1, main_~i~2#1, main_#t~nondet23#1, main_#t~malloc24#1.base, main_#t~malloc24#1.offset, main_#t~nondet26#1, main_#t~post25#1, main_~i~3#1, main_#t~ret27#1.base, main_#t~ret27#1.offset, main_~in_len~0#1, main_~hay~0#1.base, main_~hay~0#1.offset, main_~out_len~0#1, main_~needle~0#1.base, main_~needle~0#1.offset;main_~in_len~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1; 6623#L542 assume !(main_~in_len~0#1 < 1);call main_#t~malloc20#1.base, main_#t~malloc20#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~hay~0#1.base, main_~hay~0#1.offset := main_#t~malloc20#1.base, main_#t~malloc20#1.offset;main_~i~2#1 := 0; 6607#L544-3 assume !!(main_~i~2#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet22#1, main_~hay~0#1.base, main_~hay~0#1.offset + main_~i~2#1, 1);havoc main_#t~nondet22#1; 6608#L544-2 main_#t~post21#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post21#1;havoc main_#t~post21#1; 6609#L544-3 assume !!(main_~i~2#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet22#1, main_~hay~0#1.base, main_~hay~0#1.offset + main_~i~2#1, 1);havoc main_#t~nondet22#1; 6610#L544-2 main_#t~post21#1 := main_~i~2#1;main_~i~2#1 := 1 + main_#t~post21#1;havoc main_#t~post21#1; 6611#L544-3 assume !(main_~i~2#1 < main_~in_len~0#1 - 1); 6620#L544-4 call write~int(0, main_~hay~0#1.base, main_~hay~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet23#1;havoc main_#t~nondet23#1; 6621#L550 assume !(main_~out_len~0#1 < 1);call main_#t~malloc24#1.base, main_#t~malloc24#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~needle~0#1.base, main_~needle~0#1.offset := main_#t~malloc24#1.base, main_#t~malloc24#1.offset;main_~i~3#1 := 0; 6612#L552-3 assume !!(main_~i~3#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet26#1, main_~needle~0#1.base, main_~needle~0#1.offset + main_~i~3#1, 1);havoc main_#t~nondet26#1; 6613#L552-2 main_#t~post25#1 := main_~i~3#1;main_~i~3#1 := 1 + main_#t~post25#1;havoc main_#t~post25#1; 6614#L552-3 assume !!(main_~i~3#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet26#1, main_~needle~0#1.base, main_~needle~0#1.offset + main_~i~3#1, 1);havoc main_#t~nondet26#1; 6615#L552-2 main_#t~post25#1 := main_~i~3#1;main_~i~3#1 := 1 + main_#t~post25#1;havoc main_#t~post25#1; 6662#L552-3 assume !(main_~i~3#1 < main_~out_len~0#1 - 1); 6616#L552-4 call write~int(0, main_~needle~0#1.base, main_~needle~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strstr } true;strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset, strstr_#in~needle#1.base, strstr_#in~needle#1.offset := main_~hay~0#1.base, main_~hay~0#1.offset, main_~needle~0#1.base, main_~needle~0#1.offset;havoc strstr_#res#1.base, strstr_#res#1.offset;havoc strstr_#t~ret11#1, strstr_#t~ret12#1, strstr_#t~mem14#1, strstr_#t~mem15#1, strstr_#t~ret16#1, strstr_#t~short17#1, strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset, strstr_#t~pre13#1, strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1, strstr_~hl~0#1, strstr_~i~1#1;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_#in~haystack#1.base, strstr_#in~haystack#1.offset;strstr_~needle#1.base, strstr_~needle#1.offset := strstr_#in~needle#1.base, strstr_#in~needle#1.offset;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~needle#1.base, strstr_~needle#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 6617#L509 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 6626#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 6627#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 6639#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 6628#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 6629#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 6657#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 6663#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 6664#L510-1 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 6677#L510-3 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 6676#L510-4 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 6675#L510-1 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 6674#L510-5 strlen_#res#1 := strlen_~i~0#1; 6673#L511 strstr_#t~ret11#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~nl~0#1 := strstr_#t~ret11#1;havoc strstr_#t~ret11#1;assume { :begin_inline_strlen } true;strlen_#in~s#1.base, strlen_#in~s#1.offset := strstr_~haystack#1.base, strstr_~haystack#1.offset;havoc strlen_#res#1;havoc strlen_#t~pre3#1, strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset, strlen_#t~mem4#1, strlen_~s#1.base, strlen_~s#1.offset, strlen_~i~0#1;strlen_~s#1.base, strlen_~s#1.offset := strlen_#in~s#1.base, strlen_#in~s#1.offset;havoc strlen_~i~0#1; 6672#L509-2 assume !(strlen_~s#1.base == 0 && strlen_~s#1.offset == 0);strlen_~i~0#1 := 0; 6631#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 6632#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 6696#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 6695#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 6634#L510-7 assume !!(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1;strlen_#t~pre3#1 := 1 + strlen_~i~0#1;strlen_~i~0#1 := 1 + strlen_~i~0#1;havoc strlen_#t~pre3#1; 6666#L510-9 strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;strlen_~s#1.base, strlen_~s#1.offset := strlen_~s#1.base, 1 + strlen_~s#1.offset;havoc strlen_#t~pre2#1.base, strlen_#t~pre2#1.offset; 6665#L510-10 call strlen_#t~mem4#1 := read~int(strlen_~s#1.base, strlen_~s#1.offset, 1); 6635#L510-7 assume !(0 != strlen_#t~mem4#1);havoc strlen_#t~mem4#1; 6636#L510-11 strlen_#res#1 := strlen_~i~0#1; 6641#L511-1 strstr_#t~ret12#1 := strlen_#res#1;assume { :end_inline_strlen } true;strstr_~hl~0#1 := strstr_#t~ret12#1;havoc strstr_#t~ret12#1;havoc strstr_~i~1#1; 6630#L530 assume !(0 == strstr_~nl~0#1 % 18446744073709551616); 6624#L531 assume !(strstr_~nl~0#1 % 18446744073709551616 > strstr_~hl~0#1 % 18446744073709551616);strstr_~i~1#1 := 1 + (strstr_~hl~0#1 - strstr_~nl~0#1); 6625#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 6661#L533 assume strstr_#t~short17#1;assume { :begin_inline_memcmp } true;memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset, memcmp_#in~src#1.base, memcmp_#in~src#1.offset, memcmp_#in~count#1 := strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1;havoc memcmp_#res#1;havoc memcmp_#t~pre5#1, memcmp_#t~mem7#1, memcmp_#t~mem8#1, memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset, memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset, memcmp_#t~pre6#1, memcmp_~dst#1.base, memcmp_~dst#1.offset, memcmp_~src#1.base, memcmp_~src#1.offset, memcmp_~count#1, memcmp_~r~0#1, memcmp_~d~0#1.base, memcmp_~d~0#1.offset, memcmp_~s~0#1.base, memcmp_~s~0#1.offset;memcmp_~dst#1.base, memcmp_~dst#1.offset := memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset;memcmp_~src#1.base, memcmp_~src#1.offset := memcmp_#in~src#1.base, memcmp_#in~src#1.offset;memcmp_~count#1 := memcmp_#in~count#1;havoc memcmp_~r~0#1;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~dst#1.base, memcmp_~dst#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~src#1.base, memcmp_~src#1.offset;memcmp_#t~pre5#1 := 1 + memcmp_~count#1;memcmp_~count#1 := 1 + memcmp_~count#1;havoc memcmp_#t~pre5#1; 6659#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 6660#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 6644#L519 assume !(0 != memcmp_~r~0#1);havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;havoc memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset;memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;havoc memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset; 6645#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 6701#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 6697#L519 assume 0 != memcmp_~r~0#1;havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#res#1 := memcmp_~r~0#1; 6680#L524 strstr_#t~ret16#1 := memcmp_#res#1;assume { :end_inline_memcmp } true;strstr_#t~short17#1 := 0 == strstr_#t~ret16#1; 6670#L533-2 assume !strstr_#t~short17#1;havoc strstr_#t~mem14#1;havoc strstr_#t~mem15#1;havoc strstr_#t~ret16#1;havoc strstr_#t~short17#1;strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;strstr_~haystack#1.base, strstr_~haystack#1.offset := strstr_~haystack#1.base, 1 + strstr_~haystack#1.offset;havoc strstr_#t~pre18#1.base, strstr_#t~pre18#1.offset; 6668#L532-2 strstr_#t~pre13#1 := strstr_~i~1#1 - 1;strstr_~i~1#1 := strstr_~i~1#1 - 1;havoc strstr_#t~pre13#1; 6667#L532-3 assume !!(0 != strstr_~i~1#1 % 18446744073709551616);call strstr_#t~mem14#1 := read~int(strstr_~haystack#1.base, strstr_~haystack#1.offset, 1);call strstr_#t~mem15#1 := read~int(strstr_~needle#1.base, strstr_~needle#1.offset, 1);strstr_#t~short17#1 := strstr_#t~mem14#1 == strstr_#t~mem15#1; 6650#L533 assume strstr_#t~short17#1;assume { :begin_inline_memcmp } true;memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset, memcmp_#in~src#1.base, memcmp_#in~src#1.offset, memcmp_#in~count#1 := strstr_~haystack#1.base, strstr_~haystack#1.offset, strstr_~needle#1.base, strstr_~needle#1.offset, strstr_~nl~0#1;havoc memcmp_#res#1;havoc memcmp_#t~pre5#1, memcmp_#t~mem7#1, memcmp_#t~mem8#1, memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset, memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset, memcmp_#t~pre6#1, memcmp_~dst#1.base, memcmp_~dst#1.offset, memcmp_~src#1.base, memcmp_~src#1.offset, memcmp_~count#1, memcmp_~r~0#1, memcmp_~d~0#1.base, memcmp_~d~0#1.offset, memcmp_~s~0#1.base, memcmp_~s~0#1.offset;memcmp_~dst#1.base, memcmp_~dst#1.offset := memcmp_#in~dst#1.base, memcmp_#in~dst#1.offset;memcmp_~src#1.base, memcmp_~src#1.offset := memcmp_#in~src#1.base, memcmp_#in~src#1.offset;memcmp_~count#1 := memcmp_#in~count#1;havoc memcmp_~r~0#1;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~dst#1.base, memcmp_~dst#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~src#1.base, memcmp_~src#1.offset;memcmp_#t~pre5#1 := 1 + memcmp_~count#1;memcmp_~count#1 := 1 + memcmp_~count#1;havoc memcmp_#t~pre5#1; 6643#L518-3 [2021-11-20 05:36:09,422 INFO L793 eck$LassoCheckResult]: Loop: 6643#L518-3 memcmp_#t~pre6#1 := memcmp_~count#1 - 1;memcmp_~count#1 := memcmp_~count#1 - 1; 6658#L518-1 assume !!(0 != memcmp_#t~pre6#1 % 18446744073709551616);havoc memcmp_#t~pre6#1;call memcmp_#t~mem7#1 := read~int(memcmp_~d~0#1.base, memcmp_~d~0#1.offset, 1);call memcmp_#t~mem8#1 := read~int(memcmp_~s~0#1.base, memcmp_~s~0#1.offset, 1);memcmp_~r~0#1 := memcmp_#t~mem7#1 % 256 - memcmp_#t~mem8#1 % 256; 6642#L519 assume !(0 != memcmp_~r~0#1);havoc memcmp_#t~mem7#1;havoc memcmp_#t~mem8#1;memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;memcmp_~d~0#1.base, memcmp_~d~0#1.offset := memcmp_~d~0#1.base, 1 + memcmp_~d~0#1.offset;havoc memcmp_#t~pre9#1.base, memcmp_#t~pre9#1.offset;memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;memcmp_~s~0#1.base, memcmp_~s~0#1.offset := memcmp_~s~0#1.base, 1 + memcmp_~s~0#1.offset;havoc memcmp_#t~pre10#1.base, memcmp_#t~pre10#1.offset; 6643#L518-3 [2021-11-20 05:36:09,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:36:09,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1792797110, now seen corresponding path program 3 times [2021-11-20 05:36:09,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:36:09,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582442534] [2021-11-20 05:36:09,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:36:09,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:36:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:36:09,569 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-20 05:36:09,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:36:09,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582442534] [2021-11-20 05:36:09,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582442534] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:36:09,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685813440] [2021-11-20 05:36:09,570 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 05:36:09,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:36:09,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:36:09,572 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:36:09,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca80d512-e928-4c3f-b3b2-ed12872be41a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2021-11-20 05:36:09,720 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-20 05:36:09,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:36:09,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-20 05:36:09,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:36:10,207 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-20 05:36:10,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:36:23,016 WARN L227 SmtUtils]: Spent 8.55s on a formula simplification. DAG size of input: 26 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:36:30,232 WARN L227 SmtUtils]: Spent 7.21s on a formula simplification. DAG size of input: 27 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:36:46,178 WARN L227 SmtUtils]: Spent 15.94s on a formula simplification. DAG size of input: 29 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:36:52,831 WARN L227 SmtUtils]: Spent 6.65s on a formula simplification. DAG size of input: 32 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:37:07,306 WARN L227 SmtUtils]: Spent 14.47s on a formula simplification. DAG size of input: 25 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:37:20,052 WARN L227 SmtUtils]: Spent 9.15s on a formula simplification. DAG size of input: 29 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:37:28,579 WARN L227 SmtUtils]: Spent 8.52s on a formula simplification. DAG size of input: 29 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:37:34,560 WARN L227 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 29 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:37:46,176 WARN L227 SmtUtils]: Spent 11.61s on a formula simplification. DAG size of input: 26 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:38:06,545 WARN L227 SmtUtils]: Spent 16.56s on a formula simplification. DAG size of input: 27 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:38:14,069 WARN L227 SmtUtils]: Spent 7.52s on a formula simplification. DAG size of input: 22 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:38:21,823 WARN L227 SmtUtils]: Spent 7.75s on a formula simplification. DAG size of input: 33 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:38:38,111 WARN L227 SmtUtils]: Spent 8.15s on a formula simplification. DAG size of input: 29 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:38:47,678 WARN L227 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 25 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:38:54,427 WARN L227 SmtUtils]: Spent 6.73s on a formula simplification. DAG size of input: 21 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:39:05,656 WARN L227 SmtUtils]: Spent 11.23s on a formula simplification. DAG size of input: 20 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:39:31,134 WARN L227 SmtUtils]: Spent 21.97s on a formula simplification. DAG size of input: 25 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:39:45,271 WARN L227 SmtUtils]: Spent 14.14s on a formula simplification. DAG size of input: 29 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:39:51,487 WARN L227 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 28 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:40:08,556 WARN L227 SmtUtils]: Spent 17.07s on a formula simplification. DAG size of input: 31 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:40:13,829 WARN L227 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 24 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:40:28,956 WARN L227 SmtUtils]: Spent 15.12s on a formula simplification. DAG size of input: 29 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:40:42,719 WARN L227 SmtUtils]: Spent 13.76s on a formula simplification. DAG size of input: 23 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:41:03,529 WARN L227 SmtUtils]: Spent 20.48s on a formula simplification. DAG size of input: 28 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:41:15,526 WARN L227 SmtUtils]: Spent 11.99s on a formula simplification. DAG size of input: 19 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:41:20,651 WARN L227 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 24 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:41:32,011 WARN L227 SmtUtils]: Spent 6.43s on a formula simplification. DAG size of input: 27 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:41:49,842 WARN L227 SmtUtils]: Spent 14.99s on a formula simplification. DAG size of input: 31 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:41:59,607 WARN L227 SmtUtils]: Spent 9.76s on a formula simplification. DAG size of input: 31 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:42:15,215 WARN L227 SmtUtils]: Spent 15.61s on a formula simplification. DAG size of input: 27 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:42:27,275 WARN L227 SmtUtils]: Spent 10.09s on a formula simplification. DAG size of input: 26 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:42:42,777 WARN L227 SmtUtils]: Spent 8.38s on a formula simplification. DAG size of input: 25 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:42:55,993 WARN L227 SmtUtils]: Spent 10.72s on a formula simplification. DAG size of input: 31 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:43:04,758 WARN L227 SmtUtils]: Spent 8.76s on a formula simplification. DAG size of input: 26 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:43:12,532 WARN L227 SmtUtils]: Spent 7.77s on a formula simplification. DAG size of input: 19 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:43:22,705 WARN L227 SmtUtils]: Spent 10.17s on a formula simplification. DAG size of input: 36 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:43:37,324 WARN L227 SmtUtils]: Spent 10.26s on a formula simplification. DAG size of input: 28 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:43:50,978 WARN L227 SmtUtils]: Spent 13.65s on a formula simplification. DAG size of input: 21 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:44:10,569 WARN L227 SmtUtils]: Spent 19.59s on a formula simplification. DAG size of input: 22 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:44:16,788 WARN L227 SmtUtils]: Spent 6.22s on a formula simplification. DAG size of input: 32 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:44:25,340 WARN L227 SmtUtils]: Spent 8.55s on a formula simplification. DAG size of input: 24 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:44:46,108 WARN L227 SmtUtils]: Spent 19.12s on a formula simplification. DAG size of input: 31 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:44:59,718 WARN L227 SmtUtils]: Spent 13.61s on a formula simplification. DAG size of input: 30 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:45:05,954 WARN L227 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 32 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:45:27,810 WARN L227 SmtUtils]: Spent 19.07s on a formula simplification. DAG size of input: 22 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:45:36,954 WARN L227 SmtUtils]: Spent 9.13s on a formula simplification. DAG size of input: 32 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:45:46,241 WARN L227 SmtUtils]: Spent 9.28s on a formula simplification. DAG size of input: 27 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:45:52,817 WARN L227 SmtUtils]: Spent 6.57s on a formula simplification. DAG size of input: 24 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:46:06,480 WARN L227 SmtUtils]: Spent 12.60s on a formula simplification. DAG size of input: 23 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:46:21,188 WARN L227 SmtUtils]: Spent 13.57s on a formula simplification. DAG size of input: 33 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:46:53,786 WARN L227 SmtUtils]: Spent 23.69s on a formula simplification. DAG size of input: 25 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:47:07,425 WARN L227 SmtUtils]: Spent 13.64s on a formula simplification. DAG size of input: 29 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:47:14,177 WARN L227 SmtUtils]: Spent 6.75s on a formula simplification. DAG size of input: 25 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:47:30,669 WARN L227 SmtUtils]: Spent 16.49s on a formula simplification. DAG size of input: 31 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:47:57,704 WARN L227 SmtUtils]: Spent 20.06s on a formula simplification. DAG size of input: 33 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:48:10,137 WARN L227 SmtUtils]: Spent 9.29s on a formula simplification. DAG size of input: 29 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:48:27,421 WARN L227 SmtUtils]: Spent 8.12s on a formula simplification. DAG size of input: 21 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:48:41,987 WARN L227 SmtUtils]: Spent 14.56s on a formula simplification. DAG size of input: 20 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:48:59,353 WARN L227 SmtUtils]: Spent 17.36s on a formula simplification. DAG size of input: 27 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:49:08,200 WARN L227 SmtUtils]: Spent 8.85s on a formula simplification. DAG size of input: 18 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:49:20,611 WARN L227 SmtUtils]: Spent 12.23s on a formula simplification. DAG size of input: 30 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-20 05:49:34,193 WARN L227 SmtUtils]: Spent 12.20s on a formula simplification. DAG size of input: 22 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)