./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strstr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL --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-0f8a17c [2021-11-19 04:20:37,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:20:37,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:20:37,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:20:37,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:20:37,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:20:37,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:20:37,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:20:37,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:20:37,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:20:37,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:20:37,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:20:37,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:20:37,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:20:37,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:20:37,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:20:37,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:20:37,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:20:37,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:20:37,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:20:37,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:20:37,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:20:37,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:20:37,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:20:37,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:20:37,485 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:20:37,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:20:37,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:20:37,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:20:37,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:20:37,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:20:37,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:20:37,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:20:37,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:20:37,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:20:37,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:20:37,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:20:37,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:20:37,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:20:37,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:20:37,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:20:37,506 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-19 04:20:37,567 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:20:37,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:20:37,574 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:20:37,574 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:20:37,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:20:37,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:20:37,577 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:20:37,578 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-19 04:20:37,578 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-19 04:20:37,578 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-19 04:20:37,583 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-19 04:20:37,584 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-19 04:20:37,584 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-19 04:20:37,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:20:37,585 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:20:37,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:20:37,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:20:37,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-19 04:20:37,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-19 04:20:37,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-19 04:20:37,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:20:37,587 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-19 04:20:37,587 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:20:37,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-19 04:20:37,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:20:37,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:20:37,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:20:37,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:20:37,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:20:37,590 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-19 04:20:37,591 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_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0de1cabcaa1e7c1b5012604e9626b39d1f0fa44ba0399b8bd31764898831fc [2021-11-19 04:20:37,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:20:38,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:20:38,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:20:38,011 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:20:38,012 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:20:38,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/termination-dietlibc/strstr.i [2021-11-19 04:20:38,102 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/data/6ec3e8ab9/7c84dffdb20d47a59b3fba2ec52cfc8e/FLAGf725ff4b4 [2021-11-19 04:20:38,777 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:20:38,778 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/sv-benchmarks/c/termination-dietlibc/strstr.i [2021-11-19 04:20:38,808 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/data/6ec3e8ab9/7c84dffdb20d47a59b3fba2ec52cfc8e/FLAGf725ff4b4 [2021-11-19 04:20:39,044 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/data/6ec3e8ab9/7c84dffdb20d47a59b3fba2ec52cfc8e [2021-11-19 04:20:39,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:20:39,049 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:20:39,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:20:39,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:20:39,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:20:39,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:20:39" (1/1) ... [2021-11-19 04:20:39,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b14d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:39, skipping insertion in model container [2021-11-19 04:20:39,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:20:39" (1/1) ... [2021-11-19 04:20:39,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:20:39,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:20:39,473 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:20:39,482 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:20:39,535 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:20:39,569 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:20:39,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:39 WrapperNode [2021-11-19 04:20:39,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:20:39,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:20:39,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:20:39,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:20:39,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:39" (1/1) ... [2021-11-19 04:20:39,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:39" (1/1) ... [2021-11-19 04:20:39,630 INFO L137 Inliner]: procedures = 116, calls = 22, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 177 [2021-11-19 04:20:39,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:20:39,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:20:39,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:20:39,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:20:39,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:39" (1/1) ... [2021-11-19 04:20:39,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:39" (1/1) ... [2021-11-19 04:20:39,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:39" (1/1) ... [2021-11-19 04:20:39,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:39" (1/1) ... [2021-11-19 04:20:39,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:39" (1/1) ... [2021-11-19 04:20:39,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:39" (1/1) ... [2021-11-19 04:20:39,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:39" (1/1) ... [2021-11-19 04:20:39,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:20:39,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:20:39,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:20:39,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:20:39,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:39" (1/1) ... [2021-11-19 04:20:39,680 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:39,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:39,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:39,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-19 04:20:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 04:20:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 04:20:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:20:39,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 04:20:39,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:20:39,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:20:39,917 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:20:39,920 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:20:40,260 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:20:40,269 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:20:40,269 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-19 04:20:40,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:20:40 BoogieIcfgContainer [2021-11-19 04:20:40,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:20:40,273 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-19 04:20:40,273 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-19 04:20:40,277 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-19 04:20:40,278 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:20:40,279 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 04:20:39" (1/3) ... [2021-11-19 04:20:40,280 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55c5d904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:20:40, skipping insertion in model container [2021-11-19 04:20:40,280 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:20:40,281 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:39" (2/3) ... [2021-11-19 04:20:40,281 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55c5d904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:20:40, skipping insertion in model container [2021-11-19 04:20:40,281 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:20:40,281 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:20:40" (3/3) ... [2021-11-19 04:20:40,283 INFO L388 chiAutomizerObserver]: Analyzing ICFG strstr.i [2021-11-19 04:20:40,342 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-19 04:20:40,342 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-19 04:20:40,342 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-19 04:20:40,343 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-19 04:20:40,343 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-19 04:20:40,343 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-19 04:20:40,343 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-19 04:20:40,343 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-19 04:20:40,405 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) [2021-11-19 04:20:40,472 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 19 [2021-11-19 04:20:40,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:20:40,473 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:20:40,480 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-19 04:20:40,480 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-19 04:20:40,484 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-19 04:20:40,486 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) [2021-11-19 04:20:40,497 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 19 [2021-11-19 04:20:40,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:20:40,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:20:40,498 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-19 04:20:40,499 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-19 04:20:40,509 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 [2021-11-19 04:20:40,509 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 [2021-11-19 04:20:40,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:40,529 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-11-19 04:20:40,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:40,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569638712] [2021-11-19 04:20:40,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:40,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:40,711 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:40,770 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:40,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:40,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2021-11-19 04:20:40,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:40,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474806005] [2021-11-19 04:20:40,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:40,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:40,788 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:40,800 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:40,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:40,803 INFO L85 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2021-11-19 04:20:40,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:40,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283131912] [2021-11-19 04:20:40,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:40,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:40,837 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:40,889 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:41,305 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:20:41,306 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:20:41,306 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:20:41,307 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:20:41,307 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:20:41,307 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:41,307 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:20:41,307 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:20:41,308 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration1_Lasso [2021-11-19 04:20:41,309 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:20:41,309 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:20:41,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:41,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:41,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:41,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:41,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:41,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:41,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:41,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:41,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:41,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:41,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:41,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:41,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:41,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:41,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:41,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:41,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:41,826 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:20:41,831 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:20:41,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:41,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:41,837 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:41,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-19 04:20:41,852 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 [2021-11-19 04:20:41,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:41,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:41,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:41,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:41,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:41,866 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:41,867 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:41,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:41,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:41,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:41,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:41,928 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:41,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-19 04:20:41,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:20:41,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:41,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:41,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:41,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:41,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:41,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:41,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:41,977 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:42,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:42,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:42,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:42,036 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:42,043 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 [2021-11-19 04:20:42,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:42,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:42,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:42,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:42,062 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:42,064 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:42,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-19 04:20:42,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:42,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-11-19 04:20:42,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:42,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:42,103 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:42,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-19 04:20:42,106 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 [2021-11-19 04:20:42,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:42,115 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:42,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:42,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:42,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:42,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:42,117 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:42,138 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:42,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-19 04:20:42,163 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:42,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:42,165 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:42,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:20:42,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:42,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:42,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:42,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:42,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:42,206 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:42,206 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:42,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-19 04:20:42,223 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:42,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-11-19 04:20:42,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:42,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:42,253 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:42,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-19 04:20:42,256 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 [2021-11-19 04:20:42,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:42,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:42,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:42,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:42,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:42,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:42,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:42,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:42,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:42,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:42,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:42,296 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:42,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-19 04:20:42,299 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 [2021-11-19 04:20:42,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:42,308 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:42,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:42,308 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:42,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:42,309 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:42,309 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:42,322 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:42,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:42,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:42,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:42,355 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:42,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-19 04:20:42,358 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 [2021-11-19 04:20:42,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:42,368 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:42,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:42,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:42,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:42,369 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:42,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:42,403 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:42,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:42,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:42,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:42,441 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:42,446 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:20:42,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-19 04:20:42,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:42,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:42,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:42,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:42,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:42,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:42,457 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:42,468 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:42,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:42,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:42,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:42,501 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:42,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-19 04:20:42,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:20:42,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:42,516 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:42,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:42,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:42,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:42,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:42,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:42,539 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:42,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:42,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:42,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:42,567 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:42,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-19 04:20:42,572 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 [2021-11-19 04:20:42,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:42,582 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:42,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:42,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:42,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:42,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:42,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:42,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:42,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:42,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:42,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:42,668 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:42,675 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 [2021-11-19 04:20:42,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:42,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:42,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:42,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:42,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:42,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:42,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:42,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-19 04:20:42,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:42,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:42,749 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:42,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:42,750 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:42,781 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 [2021-11-19 04:20:42,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-19 04:20:42,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:42,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:42,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:42,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:42,797 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:42,798 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:42,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:42,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:42,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:42,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:42,873 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:42,880 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 [2021-11-19 04:20:42,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-19 04:20:42,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:42,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:42,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:42,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:42,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:42,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:42,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:42,908 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:42,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:42,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:42,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:42,941 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:42,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-19 04:20:42,944 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 [2021-11-19 04:20:42,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:42,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:42,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:42,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:42,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:42,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:43,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:43,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:43,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:43,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:43,036 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:43,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-19 04:20:43,041 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 [2021-11-19 04:20:43,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:43,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:43,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:43,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:43,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:43,051 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:43,051 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:43,080 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:43,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-11-19 04:20:43,124 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:43,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:43,125 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:43,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-19 04:20:43,128 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 [2021-11-19 04:20:43,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:43,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:43,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:43,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:43,144 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:43,145 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:43,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:43,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:43,202 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:43,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:43,204 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:43,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-19 04:20:43,209 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:20:43,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:43,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:43,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:43,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:43,229 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:43,229 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:43,246 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:20:43,282 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-11-19 04:20:43,282 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-11-19 04:20:43,284 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:43,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:43,307 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:43,356 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:20:43,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-19 04:20:43,396 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-19 04:20:43,397 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:20:43,397 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 [] [2021-11-19 04:20:43,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:43,465 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-11-19 04:20:43,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:20:43,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 04:20:43,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:20:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:20:43,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 04:20:43,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:20:43,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:20:43,658 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 [2021-11-19 04:20:43,660 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) [2021-11-19 04:20:43,729 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. [2021-11-19 04:20:43,731 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 [2021-11-19 04:20:43,737 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) [2021-11-19 04:20:43,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 112 transitions. [2021-11-19 04:20:43,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 112 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-19 04:20:43,742 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:20:43,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 112 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-19 04:20:43,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:20:43,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 112 transitions. Stem has 3 letters. Loop has 4 letters. [2021-11-19 04:20:43,743 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:20:43,744 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 165 transitions. [2021-11-19 04:20:43,753 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 17 [2021-11-19 04:20:43,758 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 34 states and 44 transitions. [2021-11-19 04:20:43,759 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-11-19 04:20:43,760 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-11-19 04:20:43,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 44 transitions. [2021-11-19 04:20:43,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:20:43,761 INFO L681 BuchiCegarLoop]: Abstraction has 34 states and 44 transitions. [2021-11-19 04:20:43,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 44 transitions. [2021-11-19 04:20:43,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-11-19 04:20:43,793 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) [2021-11-19 04:20:43,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2021-11-19 04:20:43,796 INFO L704 BuchiCegarLoop]: Abstraction has 34 states and 44 transitions. [2021-11-19 04:20:43,796 INFO L587 BuchiCegarLoop]: Abstraction has 34 states and 44 transitions. [2021-11-19 04:20:43,796 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-19 04:20:43,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 44 transitions. [2021-11-19 04:20:43,798 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 17 [2021-11-19 04:20:43,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:20:43,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:20:43,799 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-19 04:20:43,799 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-19 04:20:43,799 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 [2021-11-19 04:20:43,800 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 [2021-11-19 04:20:43,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:43,800 INFO L85 PathProgramCache]: Analyzing trace with hash 889572430, now seen corresponding path program 1 times [2021-11-19 04:20:43,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:43,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800187313] [2021-11-19 04:20:43,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:43,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:43,820 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:43,845 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:43,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:43,846 INFO L85 PathProgramCache]: Analyzing trace with hash 2051, now seen corresponding path program 1 times [2021-11-19 04:20:43,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:43,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556555726] [2021-11-19 04:20:43,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:43,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:43,854 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:43,862 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:43,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:43,863 INFO L85 PathProgramCache]: Analyzing trace with hash 180614416, now seen corresponding path program 1 times [2021-11-19 04:20:43,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:43,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135031052] [2021-11-19 04:20:43,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:43,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:43,905 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:43,961 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:44,493 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:20:44,493 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:20:44,493 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:20:44,493 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:20:44,493 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:20:44,493 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:44,494 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:20:44,494 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:20:44,494 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration2_Lasso [2021-11-19 04:20:44,494 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:20:44,494 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:20:44,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:44,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:44,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:44,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:44,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:44,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:44,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:44,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:44,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:44,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:44,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:44,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:45,126 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:20:45,126 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:20:45,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:45,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:45,132 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:45,145 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 [2021-11-19 04:20:45,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:45,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:45,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:45,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:45,160 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:45,160 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:45,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-19 04:20:45,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:45,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:45,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:45,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:45,220 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:45,222 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 [2021-11-19 04:20:45,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:45,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:45,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:45,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:45,237 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:45,237 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:45,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-19 04:20:45,259 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:45,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:45,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:45,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:45,305 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:45,307 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:20:45,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-19 04:20:45,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:45,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:45,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:45,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:45,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:45,321 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:45,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:45,335 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:45,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:45,381 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:45,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:45,386 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:45,392 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 [2021-11-19 04:20:45,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:45,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:45,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:45,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:45,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-19 04:20:45,420 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:45,420 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:45,447 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:20:45,498 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2021-11-19 04:20:45,498 INFO L444 ModelExtractionUtils]: 7 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-11-19 04:20:45,499 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:45,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:45,500 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:45,503 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:20:45,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-19 04:20:45,521 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-19 04:20:45,521 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:20:45,521 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 [] [2021-11-19 04:20:45,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-11-19 04:20:45,592 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2021-11-19 04:20:45,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:20:45,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 04:20:45,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:20:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:20:45,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 04:20:45,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:20:45,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:20:45,682 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 [2021-11-19 04:20:45,683 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) [2021-11-19 04:20:45,732 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. [2021-11-19 04:20:45,739 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 [2021-11-19 04:20:45,740 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) [2021-11-19 04:20:45,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 42 transitions. [2021-11-19 04:20:45,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 42 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-19 04:20:45,744 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:20:45,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 42 transitions. Stem has 8 letters. Loop has 2 letters. [2021-11-19 04:20:45,744 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:20:45,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 42 transitions. Stem has 6 letters. Loop has 4 letters. [2021-11-19 04:20:45,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:20:45,745 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 81 transitions. [2021-11-19 04:20:45,753 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-11-19 04:20:45,757 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 35 states and 46 transitions. [2021-11-19 04:20:45,758 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-11-19 04:20:45,758 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-11-19 04:20:45,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 46 transitions. [2021-11-19 04:20:45,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:20:45,758 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 46 transitions. [2021-11-19 04:20:45,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 46 transitions. [2021-11-19 04:20:45,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-19 04:20:45,762 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) [2021-11-19 04:20:45,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 46 transitions. [2021-11-19 04:20:45,763 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 46 transitions. [2021-11-19 04:20:45,763 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 46 transitions. [2021-11-19 04:20:45,763 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-19 04:20:45,763 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 46 transitions. [2021-11-19 04:20:45,764 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-11-19 04:20:45,764 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:20:45,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:20:45,766 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:20:45,766 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:20:45,767 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 [2021-11-19 04:20:45,767 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 [2021-11-19 04:20:45,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:45,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1304077847, now seen corresponding path program 1 times [2021-11-19 04:20:45,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:45,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603210456] [2021-11-19 04:20:45,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:45,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:45,790 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:45,816 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:45,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:45,817 INFO L85 PathProgramCache]: Analyzing trace with hash 78610, now seen corresponding path program 1 times [2021-11-19 04:20:45,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:45,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734283581] [2021-11-19 04:20:45,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:45,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:45,824 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:45,830 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:45,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:45,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1803996476, now seen corresponding path program 1 times [2021-11-19 04:20:45,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:45,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279022463] [2021-11-19 04:20:45,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:45,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:20:46,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:20:46,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:20:46,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279022463] [2021-11-19 04:20:46,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279022463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:20:46,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:20:46,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 04:20:46,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279441730] [2021-11-19 04:20:46,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:20:46,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:20:46,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:20:46,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:20:46,079 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) [2021-11-19 04:20:46,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:46,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:20:46,327 INFO L93 Difference]: Finished difference Result 59 states and 76 transitions. [2021-11-19 04:20:46,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:20:46,329 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 76 transitions. [2021-11-19 04:20:46,331 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 27 [2021-11-19 04:20:46,332 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 59 states and 76 transitions. [2021-11-19 04:20:46,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2021-11-19 04:20:46,333 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-11-19 04:20:46,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 76 transitions. [2021-11-19 04:20:46,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:20:46,334 INFO L681 BuchiCegarLoop]: Abstraction has 59 states and 76 transitions. [2021-11-19 04:20:46,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 76 transitions. [2021-11-19 04:20:46,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 39. [2021-11-19 04:20:46,338 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) [2021-11-19 04:20:46,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2021-11-19 04:20:46,339 INFO L704 BuchiCegarLoop]: Abstraction has 39 states and 51 transitions. [2021-11-19 04:20:46,339 INFO L587 BuchiCegarLoop]: Abstraction has 39 states and 51 transitions. [2021-11-19 04:20:46,339 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-19 04:20:46,339 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 51 transitions. [2021-11-19 04:20:46,340 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-11-19 04:20:46,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:20:46,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:20:46,341 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:20:46,341 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:20:46,342 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 [2021-11-19 04:20:46,342 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 [2021-11-19 04:20:46,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:46,343 INFO L85 PathProgramCache]: Analyzing trace with hash -911639398, now seen corresponding path program 1 times [2021-11-19 04:20:46,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:46,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882374355] [2021-11-19 04:20:46,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:46,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:20:46,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:20:46,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:20:46,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882374355] [2021-11-19 04:20:46,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882374355] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:20:46,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:20:46,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 04:20:46,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870614464] [2021-11-19 04:20:46,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:20:46,384 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:20:46,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:46,384 INFO L85 PathProgramCache]: Analyzing trace with hash 100456, now seen corresponding path program 1 times [2021-11-19 04:20:46,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:46,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815987451] [2021-11-19 04:20:46,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:46,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:46,390 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:46,396 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:46,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:20:46,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:20:46,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:20:46,468 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) [2021-11-19 04:20:46,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:20:46,516 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2021-11-19 04:20:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:20:46,520 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 49 transitions. [2021-11-19 04:20:46,523 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-11-19 04:20:46,523 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 49 transitions. [2021-11-19 04:20:46,524 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2021-11-19 04:20:46,524 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-11-19 04:20:46,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 49 transitions. [2021-11-19 04:20:46,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:20:46,526 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 49 transitions. [2021-11-19 04:20:46,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 49 transitions. [2021-11-19 04:20:46,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-19 04:20:46,534 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) [2021-11-19 04:20:46,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2021-11-19 04:20:46,534 INFO L704 BuchiCegarLoop]: Abstraction has 39 states and 49 transitions. [2021-11-19 04:20:46,535 INFO L587 BuchiCegarLoop]: Abstraction has 39 states and 49 transitions. [2021-11-19 04:20:46,535 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-19 04:20:46,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 49 transitions. [2021-11-19 04:20:46,537 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-11-19 04:20:46,537 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:20:46,538 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:20:46,539 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:20:46,539 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:20:46,541 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 [2021-11-19 04:20:46,541 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 [2021-11-19 04:20:46,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:46,542 INFO L85 PathProgramCache]: Analyzing trace with hash -909922795, now seen corresponding path program 1 times [2021-11-19 04:20:46,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:46,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334347883] [2021-11-19 04:20:46,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:46,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:46,596 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:46,637 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:46,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:46,638 INFO L85 PathProgramCache]: Analyzing trace with hash 78610, now seen corresponding path program 2 times [2021-11-19 04:20:46,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:46,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788474511] [2021-11-19 04:20:46,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:46,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:46,647 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:46,656 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:46,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:46,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1971331970, now seen corresponding path program 1 times [2021-11-19 04:20:46,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:46,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607447797] [2021-11-19 04:20:46,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:46,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:46,702 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:46,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:46,753 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:47,849 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:20:47,849 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:20:47,849 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:20:47,850 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:20:47,850 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:20:47,850 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:47,850 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:20:47,850 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:20:47,850 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration5_Lasso [2021-11-19 04:20:47,850 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:20:47,850 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:20:47,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:47,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:47,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:47,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:47,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:47,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:48,809 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:20:48,809 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:20:48,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:48,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:48,811 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:48,822 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 [2021-11-19 04:20:48,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:48,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:48,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:48,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:48,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:48,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:48,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:48,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-19 04:20:48,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:48,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:48,886 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:48,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:48,887 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:48,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-19 04:20:48,889 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 [2021-11-19 04:20:48,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:48,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:48,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:48,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:48,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:48,898 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:48,898 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:48,900 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:48,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:48,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:48,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:48,931 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:48,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-19 04:20:48,934 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 [2021-11-19 04:20:48,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:48,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:48,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:48,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:48,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:48,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:48,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:48,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:48,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-11-19 04:20:48,969 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:48,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:48,981 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:48,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-19 04:20:48,994 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 [2021-11-19 04:20:49,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:49,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:49,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:49,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:49,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:49,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:49,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:49,005 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:49,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:49,030 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:49,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:49,031 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:49,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-19 04:20:49,033 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 [2021-11-19 04:20:49,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:49,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:49,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:49,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:49,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:49,043 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:49,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:49,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:49,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-11-19 04:20:49,068 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:49,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:49,069 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:49,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-19 04:20:49,071 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 [2021-11-19 04:20:49,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:49,080 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:49,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:49,080 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-19 04:20:49,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:49,081 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:20:49,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:49,083 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:49,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-11-19 04:20:49,110 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:49,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:49,111 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:49,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-19 04:20:49,112 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 [2021-11-19 04:20:49,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:49,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:49,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:49,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:49,130 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:49,130 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:49,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:49,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:49,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:49,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:49,204 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:49,208 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 [2021-11-19 04:20:49,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:49,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:49,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:49,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:49,222 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:49,222 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:49,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-19 04:20:49,237 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:49,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:49,264 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:49,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:49,265 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:49,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-19 04:20:49,267 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 [2021-11-19 04:20:49,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:49,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:49,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:49,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:49,279 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:49,279 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:49,299 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:49,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:49,341 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:49,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:49,342 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:49,352 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 [2021-11-19 04:20:49,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:49,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:49,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:49,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:49,368 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:49,368 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:49,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-19 04:20:49,395 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:49,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:49,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:49,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:49,421 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:49,422 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 [2021-11-19 04:20:49,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-19 04:20:49,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:49,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:49,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:49,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:49,436 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:49,436 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:49,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:49,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:49,501 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:49,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:49,502 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:49,512 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 [2021-11-19 04:20:49,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:49,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:49,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:49,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:49,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-19 04:20:49,526 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:49,526 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:49,529 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:49,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:49,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:49,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:49,558 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:49,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-19 04:20:49,560 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 [2021-11-19 04:20:49,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:49,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:49,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:49,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:49,588 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:49,588 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:49,623 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:20:49,650 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-11-19 04:20:49,651 INFO L444 ModelExtractionUtils]: 35 out of 43 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-11-19 04:20:49,651 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:49,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:49,655 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:49,658 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:20:49,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-11-19 04:20:49,688 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-19 04:20:49,688 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:20:49,688 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strlen_~s#1.offset, v_rep(select #length ULTIMATE.start_strlen_~s#1.base)_1) = -1*ULTIMATE.start_strlen_~s#1.offset + 1*v_rep(select #length ULTIMATE.start_strlen_~s#1.base)_1 Supporting invariants [] [2021-11-19 04:20:49,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:49,739 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-11-19 04:20:49,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:20:49,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 04:20:49,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:20:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:20:49,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:20:49,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:20:49,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:20:49,860 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 [2021-11-19 04:20:49,861 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) [2021-11-19 04:20:49,891 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. [2021-11-19 04:20:49,891 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 [2021-11-19 04:20:49,894 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) [2021-11-19 04:20:49,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2021-11-19 04:20:49,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 3 letters. [2021-11-19 04:20:49,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:20:49,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 14 letters. Loop has 3 letters. [2021-11-19 04:20:49,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:20:49,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 6 letters. [2021-11-19 04:20:49,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:20:49,897 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 57 transitions. [2021-11-19 04:20:49,900 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-11-19 04:20:49,905 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 41 states and 52 transitions. [2021-11-19 04:20:49,905 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2021-11-19 04:20:49,905 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2021-11-19 04:20:49,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 52 transitions. [2021-11-19 04:20:49,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:20:49,906 INFO L681 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2021-11-19 04:20:49,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 52 transitions. [2021-11-19 04:20:49,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2021-11-19 04:20:49,913 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) [2021-11-19 04:20:49,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2021-11-19 04:20:49,918 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-11-19 04:20:49,918 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-11-19 04:20:49,918 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-19 04:20:49,918 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 51 transitions. [2021-11-19 04:20:49,919 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-11-19 04:20:49,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:20:49,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:20:49,920 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:20:49,920 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:20:49,921 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 [2021-11-19 04:20:49,921 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 [2021-11-19 04:20:49,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:49,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1526227897, now seen corresponding path program 1 times [2021-11-19 04:20:49,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:49,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968254919] [2021-11-19 04:20:49,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:49,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:49,959 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:49,986 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:49,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:49,995 INFO L85 PathProgramCache]: Analyzing trace with hash 100456, now seen corresponding path program 2 times [2021-11-19 04:20:49,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:49,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695480465] [2021-11-19 04:20:49,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:49,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:50,001 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:50,006 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:50,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:50,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1331413406, now seen corresponding path program 1 times [2021-11-19 04:20:50,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:50,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481856981] [2021-11-19 04:20:50,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:50,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:20:50,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:20:50,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:20:50,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481856981] [2021-11-19 04:20:50,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481856981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:20:50,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:20:50,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-19 04:20:50,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542828467] [2021-11-19 04:20:50,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:20:50,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:20:50,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 04:20:50,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-19 04:20:50,341 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) [2021-11-19 04:20:50,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:20:50,685 INFO L93 Difference]: Finished difference Result 82 states and 104 transitions. [2021-11-19 04:20:50,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 04:20:50,687 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 104 transitions. [2021-11-19 04:20:50,688 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 24 [2021-11-19 04:20:50,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 82 states and 104 transitions. [2021-11-19 04:20:50,690 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2021-11-19 04:20:50,690 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 69 [2021-11-19 04:20:50,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 104 transitions. [2021-11-19 04:20:50,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:20:50,691 INFO L681 BuchiCegarLoop]: Abstraction has 82 states and 104 transitions. [2021-11-19 04:20:50,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 104 transitions. [2021-11-19 04:20:50,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 60. [2021-11-19 04:20:50,696 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) [2021-11-19 04:20:50,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 76 transitions. [2021-11-19 04:20:50,696 INFO L704 BuchiCegarLoop]: Abstraction has 60 states and 76 transitions. [2021-11-19 04:20:50,696 INFO L587 BuchiCegarLoop]: Abstraction has 60 states and 76 transitions. [2021-11-19 04:20:50,697 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-19 04:20:50,697 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 76 transitions. [2021-11-19 04:20:50,698 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-11-19 04:20:50,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:20:50,698 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:20:50,699 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:20:50,699 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:20:50,699 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 [2021-11-19 04:20:50,699 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 [2021-11-19 04:20:50,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:50,700 INFO L85 PathProgramCache]: Analyzing trace with hash -432721371, now seen corresponding path program 1 times [2021-11-19 04:20:50,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:50,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559475648] [2021-11-19 04:20:50,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:50,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:50,711 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:50,728 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:50,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:50,729 INFO L85 PathProgramCache]: Analyzing trace with hash 100456, now seen corresponding path program 3 times [2021-11-19 04:20:50,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:50,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138853721] [2021-11-19 04:20:50,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:50,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:50,773 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:50,777 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:50,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:50,778 INFO L85 PathProgramCache]: Analyzing trace with hash -2005437500, now seen corresponding path program 1 times [2021-11-19 04:20:50,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:50,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064290617] [2021-11-19 04:20:50,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:50,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:50,819 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:50,840 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:50,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:52,011 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:20:52,011 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:20:52,011 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:20:52,011 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:20:52,011 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:20:52,011 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:52,011 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:20:52,012 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:20:52,012 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration7_Lasso [2021-11-19 04:20:52,012 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:20:52,012 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:20:52,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:52,992 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:20:52,992 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:20:52,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:52,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:52,998 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,005 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:20:53,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:53,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:53,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:53,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-11-19 04:20:53,027 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-11-19 04:20:53,057 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,058 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-11-19 04:20:53,060 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 [2021-11-19 04:20:53,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,069 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:53,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:53,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:53,071 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-11-19 04:20:53,096 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,096 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-11-19 04:20:53,098 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 [2021-11-19 04:20:53,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:53,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,107 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:53,107 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:53,109 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-11-19 04:20:53,133 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,134 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-11-19 04:20:53,136 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 [2021-11-19 04:20:53,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:53,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:53,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:53,169 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-11-19 04:20:53,194 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,194 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-11-19 04:20:53,197 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 [2021-11-19 04:20:53,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:53,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:53,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:53,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:53,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,247 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-11-19 04:20:53,248 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 [2021-11-19 04:20:53,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,257 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,258 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:53,258 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:53,261 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:53,288 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,289 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-11-19 04:20:53,291 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 [2021-11-19 04:20:53,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:53,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,300 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:53,300 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:53,302 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-11-19 04:20:53,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,327 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-11-19 04:20:53,329 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 [2021-11-19 04:20:53,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:53,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:53,343 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:53,362 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:53,387 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,387 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-11-19 04:20:53,390 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 [2021-11-19 04:20:53,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:53,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:53,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:53,400 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-11-19 04:20:53,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,425 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-11-19 04:20:53,427 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 [2021-11-19 04:20:53,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,436 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:53,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:53,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:53,449 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:53,473 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,474 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-11-19 04:20:53,476 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 [2021-11-19 04:20:53,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:53,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:53,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:53,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-11-19 04:20:53,512 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,512 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-11-19 04:20:53,514 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 [2021-11-19 04:20:53,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:53,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,523 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:53,523 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:53,525 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-11-19 04:20:53,549 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,551 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-11-19 04:20:53,568 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 [2021-11-19 04:20:53,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:53,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:53,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:53,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-11-19 04:20:53,632 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,634 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,636 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 [2021-11-19 04:20:53,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:53,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:53,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:53,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-11-19 04:20:53,653 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-11-19 04:20:53,677 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,678 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-11-19 04:20:53,681 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 [2021-11-19 04:20:53,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,690 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:53,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,691 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:53,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:53,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-11-19 04:20:53,745 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,746 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,753 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 [2021-11-19 04:20:53,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,766 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:53,766 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:53,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-11-19 04:20:53,783 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:53,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,827 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,829 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 [2021-11-19 04:20:53,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,842 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:53,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,843 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:53,843 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:53,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-11-19 04:20:53,855 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:53,895 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,897 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,899 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 [2021-11-19 04:20:53,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,912 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:53,913 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:53,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-11-19 04:20:53,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:53,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:53,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:53,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:53,980 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:53,982 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 [2021-11-19 04:20:53,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:53,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:53,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:53,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:53,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:53,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:53,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:53,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-11-19 04:20:54,014 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:54,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:54,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:54,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:54,057 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:54,059 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 [2021-11-19 04:20:54,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:54,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:54,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:54,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:54,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:54,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:54,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:54,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-11-19 04:20:54,083 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:54,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:54,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:54,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:54,126 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:54,128 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 [2021-11-19 04:20:54,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:54,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:54,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:54,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:54,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:54,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:20:54,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:54,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-11-19 04:20:54,151 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:54,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:54,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:54,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:54,196 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:54,199 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 [2021-11-19 04:20:54,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:54,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:20:54,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:54,211 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-19 04:20:54,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:54,212 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:20:54,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:20:54,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-11-19 04:20:54,235 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:54,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:54,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:54,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:54,280 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:54,282 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 [2021-11-19 04:20:54,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-11-19 04:20:54,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:54,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:54,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:54,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:54,300 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:54,301 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:54,313 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:20:54,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-11-19 04:20:54,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:54,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:54,338 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:54,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-11-19 04:20:54,340 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 [2021-11-19 04:20:54,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:20:54,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:20:54,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:20:54,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:20:54,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:20:54,373 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:20:54,394 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:20:54,468 INFO L443 ModelExtractionUtils]: Simplification made 27 calls to the SMT solver. [2021-11-19 04:20:54,469 INFO L444 ModelExtractionUtils]: 12 out of 52 variables were initially zero. Simplification set additionally 37 variables to zero. [2021-11-19 04:20:54,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:54,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:54,480 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:20:54,482 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:20:54,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-11-19 04:20:54,493 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-19 04:20:54,493 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:20:54,493 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 [] [2021-11-19 04:20:54,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:54,559 INFO L297 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2021-11-19 04:20:54,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:20:54,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 04:20:54,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:20:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:20:54,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:20:54,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:20:54,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:20:54,794 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 [2021-11-19 04:20:54,794 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) [2021-11-19 04:20:54,913 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. [2021-11-19 04:20:54,914 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 [2021-11-19 04:20:54,915 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) [2021-11-19 04:20:54,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 56 transitions. [2021-11-19 04:20:54,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 56 transitions. Stem has 16 letters. Loop has 3 letters. [2021-11-19 04:20:54,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:20:54,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 56 transitions. Stem has 19 letters. Loop has 3 letters. [2021-11-19 04:20:54,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:20:54,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 56 transitions. Stem has 16 letters. Loop has 6 letters. [2021-11-19 04:20:54,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:20:54,917 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 114 transitions. [2021-11-19 04:20:54,918 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-11-19 04:20:54,919 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 74 states and 94 transitions. [2021-11-19 04:20:54,919 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2021-11-19 04:20:54,920 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2021-11-19 04:20:54,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 94 transitions. [2021-11-19 04:20:54,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:20:54,920 INFO L681 BuchiCegarLoop]: Abstraction has 74 states and 94 transitions. [2021-11-19 04:20:54,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 94 transitions. [2021-11-19 04:20:54,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 61. [2021-11-19 04:20:54,924 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) [2021-11-19 04:20:54,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 78 transitions. [2021-11-19 04:20:54,925 INFO L704 BuchiCegarLoop]: Abstraction has 61 states and 78 transitions. [2021-11-19 04:20:54,925 INFO L587 BuchiCegarLoop]: Abstraction has 61 states and 78 transitions. [2021-11-19 04:20:54,925 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-19 04:20:54,925 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 78 transitions. [2021-11-19 04:20:54,926 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-19 04:20:54,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:20:54,926 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:20:54,927 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:20:54,927 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-19 04:20:54,928 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 [2021-11-19 04:20:54,928 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 [2021-11-19 04:20:54,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:54,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1331460076, now seen corresponding path program 1 times [2021-11-19 04:20:54,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:54,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006599103] [2021-11-19 04:20:54,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:54,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:20:54,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:20:54,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:20:54,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006599103] [2021-11-19 04:20:54,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006599103] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:20:54,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:20:54,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 04:20:54,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338341197] [2021-11-19 04:20:54,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:20:54,991 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:20:54,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:54,992 INFO L85 PathProgramCache]: Analyzing trace with hash 4089565, now seen corresponding path program 1 times [2021-11-19 04:20:54,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:54,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250584680] [2021-11-19 04:20:54,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:54,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:54,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:54,999 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:55,006 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:55,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:20:55,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:20:55,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:20:55,155 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) [2021-11-19 04:20:55,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:20:55,214 INFO L93 Difference]: Finished difference Result 61 states and 76 transitions. [2021-11-19 04:20:55,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:20:55,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 76 transitions. [2021-11-19 04:20:55,216 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-19 04:20:55,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 61 states and 76 transitions. [2021-11-19 04:20:55,217 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2021-11-19 04:20:55,218 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2021-11-19 04:20:55,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 76 transitions. [2021-11-19 04:20:55,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:20:55,218 INFO L681 BuchiCegarLoop]: Abstraction has 61 states and 76 transitions. [2021-11-19 04:20:55,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 76 transitions. [2021-11-19 04:20:55,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-11-19 04:20:55,227 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) [2021-11-19 04:20:55,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2021-11-19 04:20:55,227 INFO L704 BuchiCegarLoop]: Abstraction has 61 states and 76 transitions. [2021-11-19 04:20:55,227 INFO L587 BuchiCegarLoop]: Abstraction has 61 states and 76 transitions. [2021-11-19 04:20:55,227 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-11-19 04:20:55,228 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 76 transitions. [2021-11-19 04:20:55,228 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-19 04:20:55,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:20:55,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:20:55,229 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] [2021-11-19 04:20:55,229 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-19 04:20:55,230 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 [2021-11-19 04:20:55,230 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 [2021-11-19 04:20:55,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:55,230 INFO L85 PathProgramCache]: Analyzing trace with hash -115443887, now seen corresponding path program 1 times [2021-11-19 04:20:55,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:55,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777138118] [2021-11-19 04:20:55,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:55,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:20:55,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:20:55,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:20:55,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777138118] [2021-11-19 04:20:55,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777138118] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:20:55,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:20:55,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 04:20:55,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348677029] [2021-11-19 04:20:55,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:20:55,282 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:20:55,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:55,283 INFO L85 PathProgramCache]: Analyzing trace with hash 4089565, now seen corresponding path program 2 times [2021-11-19 04:20:55,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:55,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981828096] [2021-11-19 04:20:55,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:55,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:55,288 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:55,293 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:55,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:20:55,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:20:55,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:20:55,437 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) [2021-11-19 04:20:55,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:20:55,494 INFO L93 Difference]: Finished difference Result 100 states and 118 transitions. [2021-11-19 04:20:55,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 04:20:55,496 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 118 transitions. [2021-11-19 04:20:55,497 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-11-19 04:20:55,498 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 72 states and 86 transitions. [2021-11-19 04:20:55,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2021-11-19 04:20:55,498 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-11-19 04:20:55,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 86 transitions. [2021-11-19 04:20:55,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:20:55,499 INFO L681 BuchiCegarLoop]: Abstraction has 72 states and 86 transitions. [2021-11-19 04:20:55,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 86 transitions. [2021-11-19 04:20:55,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 55. [2021-11-19 04:20:55,502 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) [2021-11-19 04:20:55,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2021-11-19 04:20:55,503 INFO L704 BuchiCegarLoop]: Abstraction has 55 states and 66 transitions. [2021-11-19 04:20:55,503 INFO L587 BuchiCegarLoop]: Abstraction has 55 states and 66 transitions. [2021-11-19 04:20:55,503 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-11-19 04:20:55,503 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 66 transitions. [2021-11-19 04:20:55,503 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-19 04:20:55,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:20:55,504 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:20:55,504 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] [2021-11-19 04:20:55,505 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-19 04:20:55,505 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 [2021-11-19 04:20:55,505 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 [2021-11-19 04:20:55,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:55,505 INFO L85 PathProgramCache]: Analyzing trace with hash 278203018, now seen corresponding path program 1 times [2021-11-19 04:20:55,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:55,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950541082] [2021-11-19 04:20:55,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:55,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:20:55,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 04:20:55,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:20:55,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950541082] [2021-11-19 04:20:55,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950541082] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:20:55,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044056433] [2021-11-19 04:20:55,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:55,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:20:55,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:20:55,781 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:20:55,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2021-11-19 04:20:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:20:55,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:20:55,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:20:55,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-11-19 04:20:56,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 04:20:56,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:20:56,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044056433] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:20:56,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:20:56,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-11-19 04:20:56,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12566291] [2021-11-19 04:20:56,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:20:56,007 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:20:56,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:56,008 INFO L85 PathProgramCache]: Analyzing trace with hash 4089565, now seen corresponding path program 3 times [2021-11-19 04:20:56,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:56,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494048799] [2021-11-19 04:20:56,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:56,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:56,012 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:56,015 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:56,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:20:56,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:20:56,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-19 04:20:56,160 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) [2021-11-19 04:20:56,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:20:56,227 INFO L93 Difference]: Finished difference Result 63 states and 73 transitions. [2021-11-19 04:20:56,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:20:56,228 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 73 transitions. [2021-11-19 04:20:56,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-19 04:20:56,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 41 states and 48 transitions. [2021-11-19 04:20:56,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-11-19 04:20:56,230 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-11-19 04:20:56,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 48 transitions. [2021-11-19 04:20:56,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:20:56,230 INFO L681 BuchiCegarLoop]: Abstraction has 41 states and 48 transitions. [2021-11-19 04:20:56,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 48 transitions. [2021-11-19 04:20:56,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2021-11-19 04:20:56,232 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) [2021-11-19 04:20:56,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2021-11-19 04:20:56,233 INFO L704 BuchiCegarLoop]: Abstraction has 39 states and 46 transitions. [2021-11-19 04:20:56,233 INFO L587 BuchiCegarLoop]: Abstraction has 39 states and 46 transitions. [2021-11-19 04:20:56,233 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-11-19 04:20:56,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 46 transitions. [2021-11-19 04:20:56,233 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-11-19 04:20:56,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:20:56,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:20:56,235 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] [2021-11-19 04:20:56,235 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-19 04:20:56,235 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 [2021-11-19 04:20:56,235 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 [2021-11-19 04:20:56,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:56,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1690519729, now seen corresponding path program 1 times [2021-11-19 04:20:56,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:56,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320287469] [2021-11-19 04:20:56,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:56,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:56,257 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:56,281 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:56,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:56,282 INFO L85 PathProgramCache]: Analyzing trace with hash 4089565, now seen corresponding path program 4 times [2021-11-19 04:20:56,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:56,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306877508] [2021-11-19 04:20:56,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:56,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:56,287 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:56,291 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:56,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:20:56,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1271781261, now seen corresponding path program 1 times [2021-11-19 04:20:56,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:20:56,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97916077] [2021-11-19 04:20:56,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:20:56,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:20:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:56,320 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:20:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:20:56,348 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:20:59,037 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:20:59,037 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:20:59,037 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:20:59,037 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:20:59,037 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:20:59,037 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:20:59,037 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:20:59,037 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:20:59,037 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration11_Lasso [2021-11-19 04:20:59,037 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:20:59,037 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:20:59,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:20:59,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:00,407 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:21:00,407 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:21:00,408 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:00,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:00,409 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:00,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-11-19 04:21:00,411 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 [2021-11-19 04:21:00,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:00,420 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:00,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:00,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:00,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:00,421 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:00,421 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:00,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:00,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-11-19 04:21:00,446 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:00,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:00,447 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:00,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-11-19 04:21:00,451 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 [2021-11-19 04:21:00,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:00,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:00,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:00,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:00,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:00,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:00,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:00,462 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:00,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:00,487 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:00,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:00,488 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:00,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-11-19 04:21:00,490 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 [2021-11-19 04:21:00,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:00,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:00,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:00,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:00,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:00,500 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:00,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:00,527 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:00,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:00,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:00,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:00,573 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:00,576 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 [2021-11-19 04:21:00,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:00,588 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:00,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:00,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:00,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:00,589 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:00,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:00,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-11-19 04:21:00,602 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:00,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:00,629 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:00,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:00,630 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:00,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-11-19 04:21:00,631 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 [2021-11-19 04:21:00,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:00,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:00,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:00,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:00,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:00,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:00,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:00,642 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:00,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-11-19 04:21:00,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:00,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:00,668 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:00,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-11-19 04:21:00,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:21:00,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:00,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:00,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:00,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:00,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:00,682 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:00,682 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:00,699 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:00,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-11-19 04:21:00,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:00,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:00,725 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:00,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-11-19 04:21:00,727 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 [2021-11-19 04:21:00,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:00,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:00,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:00,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:00,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:00,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:00,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:00,739 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:00,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2021-11-19 04:21:00,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:00,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:00,764 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:00,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-11-19 04:21:00,766 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 [2021-11-19 04:21:00,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:00,775 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:00,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:00,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:00,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:00,776 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:00,776 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:00,783 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:00,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-11-19 04:21:00,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:00,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:00,808 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:00,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-11-19 04:21:00,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:21:00,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:00,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:00,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:00,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:00,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:00,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:00,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:00,822 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:00,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-11-19 04:21:00,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:00,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:00,847 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:00,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-11-19 04:21:00,849 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 [2021-11-19 04:21:00,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:00,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:00,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:00,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:00,865 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:21:00,866 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:21:00,878 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:00,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2021-11-19 04:21:00,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:00,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:00,903 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:00,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-11-19 04:21:00,905 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 [2021-11-19 04:21:00,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:00,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:00,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:00,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:00,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:21:00,940 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:21:00,977 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:21:01,053 INFO L443 ModelExtractionUtils]: Simplification made 25 calls to the SMT solver. [2021-11-19 04:21:01,053 INFO L444 ModelExtractionUtils]: 11 out of 52 variables were initially zero. Simplification set additionally 36 variables to zero. [2021-11-19 04:21:01,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:01,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:01,061 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:01,064 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:21:01,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-11-19 04:21:01,089 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-11-19 04:21:01,089 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:21:01,089 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] [2021-11-19 04:21:01,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:01,258 INFO L297 tatePredicateManager]: 25 out of 26 supporting invariants were superfluous and have been removed [2021-11-19 04:21:01,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:01,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-19 04:21:01,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:01,375 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 [2021-11-19 04:21:01,529 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 04:21:01,529 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 [2021-11-19 04:21:01,537 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 04:21:01,537 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 [2021-11-19 04:21:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:01,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 04:21:01,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:01,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:21:01,955 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 [2021-11-19 04:21:01,955 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) [2021-11-19 04:21:02,213 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. [2021-11-19 04:21:02,214 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 [2021-11-19 04:21:02,215 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) [2021-11-19 04:21:02,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 68 transitions. [2021-11-19 04:21:02,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 68 transitions. Stem has 30 letters. Loop has 4 letters. [2021-11-19 04:21:02,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:21:02,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 68 transitions. Stem has 34 letters. Loop has 4 letters. [2021-11-19 04:21:02,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:21:02,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 68 transitions. Stem has 30 letters. Loop has 8 letters. [2021-11-19 04:21:02,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:21:02,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 87 states and 107 transitions. [2021-11-19 04:21:02,219 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-11-19 04:21:02,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 87 states to 84 states and 101 transitions. [2021-11-19 04:21:02,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2021-11-19 04:21:02,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-11-19 04:21:02,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 84 states and 101 transitions. [2021-11-19 04:21:02,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:21:02,221 INFO L681 BuchiCegarLoop]: Abstraction has 84 states and 101 transitions. [2021-11-19 04:21:02,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states and 101 transitions. [2021-11-19 04:21:02,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2021-11-19 04:21:02,225 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) [2021-11-19 04:21:02,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 96 transitions. [2021-11-19 04:21:02,226 INFO L704 BuchiCegarLoop]: Abstraction has 80 states and 96 transitions. [2021-11-19 04:21:02,226 INFO L587 BuchiCegarLoop]: Abstraction has 80 states and 96 transitions. [2021-11-19 04:21:02,226 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-11-19 04:21:02,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 96 transitions. [2021-11-19 04:21:02,227 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-11-19 04:21:02,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:21:02,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:21:02,229 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] [2021-11-19 04:21:02,229 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:21:02,229 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 [2021-11-19 04:21:02,230 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 [2021-11-19 04:21:02,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:02,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1091824948, now seen corresponding path program 1 times [2021-11-19 04:21:02,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:02,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270476037] [2021-11-19 04:21:02,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:02,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:02,252 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:21:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:02,281 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:21:02,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:02,282 INFO L85 PathProgramCache]: Analyzing trace with hash 139186, now seen corresponding path program 1 times [2021-11-19 04:21:02,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:02,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130344831] [2021-11-19 04:21:02,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:02,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:02,290 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:21:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:02,296 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:21:02,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:02,297 INFO L85 PathProgramCache]: Analyzing trace with hash 769802655, now seen corresponding path program 1 times [2021-11-19 04:21:02,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:02,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424906417] [2021-11-19 04:21:02,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:02,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:02,359 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:21:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:02,426 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:21:02,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:06,819 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:21:06,819 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:21:06,820 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:21:06,820 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:21:06,820 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:21:06,820 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:06,820 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:21:06,820 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:21:06,820 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration12_Lasso [2021-11-19 04:21:06,820 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:21:06,820 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:21:06,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:06,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:06,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:06,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:06,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:06,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:06,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:06,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:06,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:06,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:06,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:06,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:08,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:09,363 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:21:09,363 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:21:09,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:09,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:09,370 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:09,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-11-19 04:21:09,371 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 [2021-11-19 04:21:09,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:09,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:09,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:09,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:09,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:09,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:09,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:09,382 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:09,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:09,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:09,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:09,407 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:09,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-11-19 04:21:09,409 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 [2021-11-19 04:21:09,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:09,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:09,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:09,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:09,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:09,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:09,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:09,420 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:09,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:09,444 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:09,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:09,445 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:09,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-11-19 04:21:09,446 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:21:09,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:09,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:09,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:09,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:09,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:09,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:09,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:09,457 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:09,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2021-11-19 04:21:09,481 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:09,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:09,500 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:09,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-11-19 04:21:09,508 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 [2021-11-19 04:21:09,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:09,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:09,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:09,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:09,535 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:21:09,535 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:21:09,563 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:09,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:09,600 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:09,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:09,601 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:09,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-11-19 04:21:09,602 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 [2021-11-19 04:21:09,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:09,611 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:09,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:09,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:09,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:09,612 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:09,612 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:09,615 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:09,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-11-19 04:21:09,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:09,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:09,640 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:09,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-11-19 04:21:09,642 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 [2021-11-19 04:21:09,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:09,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:09,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:09,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:09,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:09,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:09,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:09,652 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:09,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2021-11-19 04:21:09,677 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:09,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:09,678 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:09,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-11-19 04:21:09,679 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 [2021-11-19 04:21:09,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:09,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:09,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:09,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:09,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:09,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:09,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:09,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:09,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2021-11-19 04:21:09,713 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:09,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:09,714 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:09,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-11-19 04:21:09,716 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 [2021-11-19 04:21:09,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:09,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:09,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:09,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:09,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:09,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:09,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:09,728 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:09,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2021-11-19 04:21:09,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:09,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:09,753 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:09,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-11-19 04:21:09,757 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 [2021-11-19 04:21:09,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:09,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:09,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:09,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:09,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:09,766 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:09,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:09,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:09,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2021-11-19 04:21:09,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:09,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:09,793 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:09,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-11-19 04:21:09,794 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 [2021-11-19 04:21:09,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:09,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:09,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:09,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:09,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:09,803 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:09,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:09,805 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:09,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:09,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:09,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:09,830 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:09,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-11-19 04:21:09,832 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 [2021-11-19 04:21:09,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:09,841 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:09,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:09,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:09,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:09,841 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:09,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:09,843 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:09,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:09,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:09,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:09,869 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:09,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-11-19 04:21:09,871 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 [2021-11-19 04:21:09,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:09,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:09,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:09,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:09,882 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:21:09,882 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:21:09,886 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:09,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:09,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:09,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:09,912 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:09,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-11-19 04:21:09,913 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 [2021-11-19 04:21:09,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:09,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:09,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:09,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:09,941 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:21:09,941 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:21:09,974 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:21:10,125 INFO L443 ModelExtractionUtils]: Simplification made 37 calls to the SMT solver. [2021-11-19 04:21:10,125 INFO L444 ModelExtractionUtils]: 15 out of 79 variables were initially zero. Simplification set additionally 61 variables to zero. [2021-11-19 04:21:10,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:10,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:10,126 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:10,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-11-19 04:21:10,133 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:21:10,143 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-19 04:21:10,143 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:21:10,143 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_strlen_~s#1.base)_4, ULTIMATE.start_memcmp_~d~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_strlen_~s#1.base)_4 - 1*ULTIMATE.start_memcmp_~d~0#1.offset Supporting invariants [] [2021-11-19 04:21:10,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:10,361 INFO L297 tatePredicateManager]: 33 out of 34 supporting invariants were superfluous and have been removed [2021-11-19 04:21:10,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:10,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 04:21:10,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:10,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:21:10,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:10,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:21:10,624 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 [2021-11-19 04:21:10,624 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) [2021-11-19 04:21:10,686 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. [2021-11-19 04:21:10,686 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 [2021-11-19 04:21:10,687 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) [2021-11-19 04:21:10,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2021-11-19 04:21:10,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 32 letters. Loop has 3 letters. [2021-11-19 04:21:10,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:21:10,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 35 letters. Loop has 3 letters. [2021-11-19 04:21:10,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:21:10,689 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 32 letters. Loop has 6 letters. [2021-11-19 04:21:10,689 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:21:10,689 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 194 transitions. [2021-11-19 04:21:10,691 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 24 [2021-11-19 04:21:10,693 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 125 states and 153 transitions. [2021-11-19 04:21:10,693 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 72 [2021-11-19 04:21:10,694 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2021-11-19 04:21:10,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 153 transitions. [2021-11-19 04:21:10,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:21:10,694 INFO L681 BuchiCegarLoop]: Abstraction has 125 states and 153 transitions. [2021-11-19 04:21:10,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 153 transitions. [2021-11-19 04:21:10,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 99. [2021-11-19 04:21:10,700 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) [2021-11-19 04:21:10,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 121 transitions. [2021-11-19 04:21:10,701 INFO L704 BuchiCegarLoop]: Abstraction has 99 states and 121 transitions. [2021-11-19 04:21:10,701 INFO L587 BuchiCegarLoop]: Abstraction has 99 states and 121 transitions. [2021-11-19 04:21:10,701 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-11-19 04:21:10,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 99 states and 121 transitions. [2021-11-19 04:21:10,702 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 16 [2021-11-19 04:21:10,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:21:10,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:21:10,703 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] [2021-11-19 04:21:10,704 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-19 04:21:10,704 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 [2021-11-19 04:21:10,704 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 [2021-11-19 04:21:10,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:10,705 INFO L85 PathProgramCache]: Analyzing trace with hash 2104844943, now seen corresponding path program 2 times [2021-11-19 04:21:10,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:10,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574003652] [2021-11-19 04:21:10,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:10,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:10,730 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:21:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:10,755 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:21:10,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:10,756 INFO L85 PathProgramCache]: Analyzing trace with hash 4089565, now seen corresponding path program 5 times [2021-11-19 04:21:10,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:10,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579580124] [2021-11-19 04:21:10,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:10,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:10,760 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:21:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:10,765 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:21:10,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:10,765 INFO L85 PathProgramCache]: Analyzing trace with hash 671339115, now seen corresponding path program 2 times [2021-11-19 04:21:10,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:10,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887830920] [2021-11-19 04:21:10,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:10,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:10,789 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:21:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:10,824 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:21:11,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:13,542 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:21:13,542 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:21:13,542 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:21:13,543 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:21:13,543 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:21:13,543 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:13,543 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:21:13,543 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:21:13,543 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration13_Lasso [2021-11-19 04:21:13,543 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:21:13,543 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:21:13,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:13,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:13,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:13,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:13,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:13,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:13,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:13,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:13,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:13,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:13,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:13,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:14,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:14,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:14,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:14,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:14,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:14,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:14,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:14,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:14,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:14,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:14,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:14,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:14,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:14,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:14,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:14,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:21:14,884 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:21:14,884 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:21:14,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:14,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:14,885 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:14,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-11-19 04:21:14,887 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 [2021-11-19 04:21:14,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:14,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:14,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:14,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:14,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:14,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:14,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:14,897 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:14,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:14,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:14,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:14,923 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:14,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-11-19 04:21:14,924 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 [2021-11-19 04:21:14,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:14,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:14,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:14,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:14,938 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:21:14,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:21:14,946 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:14,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:14,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:14,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:14,972 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:14,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-11-19 04:21:14,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:21:14,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:14,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:14,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:14,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:14,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:14,984 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:14,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:14,986 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:15,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Ended with exit code 0 [2021-11-19 04:21:15,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:15,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:15,011 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:15,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-11-19 04:21:15,012 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 [2021-11-19 04:21:15,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:15,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:15,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:15,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:15,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:15,022 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:15,022 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:15,023 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:15,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2021-11-19 04:21:15,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:15,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:15,048 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:15,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2021-11-19 04:21:15,049 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 [2021-11-19 04:21:15,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:15,058 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:15,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:15,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:15,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:15,059 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:15,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:15,060 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:15,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Ended with exit code 0 [2021-11-19 04:21:15,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:15,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:15,095 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:15,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-11-19 04:21:15,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:21:15,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:15,106 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:15,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:15,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:15,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:15,106 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:15,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:15,108 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:15,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:15,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:15,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:15,133 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:15,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2021-11-19 04:21:15,134 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 [2021-11-19 04:21:15,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:15,143 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:15,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:15,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:15,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:15,144 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:15,144 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:15,145 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:15,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Ended with exit code 0 [2021-11-19 04:21:15,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:15,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:15,170 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:15,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-11-19 04:21:15,171 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 [2021-11-19 04:21:15,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:15,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:15,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:15,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:15,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:15,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:15,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:15,182 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:15,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Ended with exit code 0 [2021-11-19 04:21:15,206 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:15,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:15,207 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:15,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-11-19 04:21:15,209 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:21:15,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:15,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:15,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:15,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:15,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:15,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:15,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:15,220 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:15,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:15,244 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:15,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:15,245 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:15,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-11-19 04:21:15,246 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 [2021-11-19 04:21:15,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:15,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:15,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:15,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:15,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:15,258 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:15,258 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:15,271 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:15,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Ended with exit code 0 [2021-11-19 04:21:15,296 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:15,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:15,297 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:15,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-11-19 04:21:15,298 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 [2021-11-19 04:21:15,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:15,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:21:15,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:15,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:15,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:15,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:21:15,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:21:15,309 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:15,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:15,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:15,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:15,334 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:15,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-11-19 04:21:15,335 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 [2021-11-19 04:21:15,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:15,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:15,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:15,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:15,346 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:21:15,347 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:21:15,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:15,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Ended with exit code 0 [2021-11-19 04:21:15,378 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:15,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:15,379 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:15,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2021-11-19 04:21:15,380 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 [2021-11-19 04:21:15,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:15,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:15,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:15,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:15,391 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:21:15,391 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:21:15,394 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:15,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:15,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:15,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:15,419 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:15,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2021-11-19 04:21:15,420 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 [2021-11-19 04:21:15,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:15,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:15,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:15,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:15,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:21:15,432 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:21:15,467 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:15,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Ended with exit code 0 [2021-11-19 04:21:15,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:15,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:15,496 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:15,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-11-19 04:21:15,497 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:21:15,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:15,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:15,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:15,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:15,514 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:21:15,514 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:21:15,526 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:21:15,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Ended with exit code 0 [2021-11-19 04:21:15,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:15,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:15,551 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:15,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-11-19 04:21:15,553 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 [2021-11-19 04:21:15,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:21:15,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:21:15,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:21:15,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:21:15,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:21:15,576 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:21:15,599 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:21:15,683 INFO L443 ModelExtractionUtils]: Simplification made 23 calls to the SMT solver. [2021-11-19 04:21:15,684 INFO L444 ModelExtractionUtils]: 13 out of 61 variables were initially zero. Simplification set additionally 45 variables to zero. [2021-11-19 04:21:15,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:21:15,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:15,685 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:21:15,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-11-19 04:21:15,686 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:21:15,696 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-19 04:21:15,696 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:21:15,696 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~hay~0#1.base)_3, ULTIMATE.start_strstr_~haystack#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_~hay~0#1.base)_3 - 1*ULTIMATE.start_strstr_~haystack#1.offset Supporting invariants [] [2021-11-19 04:21:15,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:15,784 INFO L297 tatePredicateManager]: 20 out of 22 supporting invariants were superfluous and have been removed [2021-11-19 04:21:15,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:15,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:21:15,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:16,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Forceful destruction successful, exit code 0 [2021-11-19 04:21:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:16,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 04:21:16,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:16,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:21:16,245 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 [2021-11-19 04:21:16,245 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) [2021-11-19 04:21:16,305 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. [2021-11-19 04:21:16,306 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 [2021-11-19 04:21:16,307 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) [2021-11-19 04:21:16,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 41 transitions. [2021-11-19 04:21:16,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 41 transitions. Stem has 32 letters. Loop has 4 letters. [2021-11-19 04:21:16,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:21:16,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 41 transitions. Stem has 36 letters. Loop has 4 letters. [2021-11-19 04:21:16,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:21:16,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 41 transitions. Stem has 32 letters. Loop has 8 letters. [2021-11-19 04:21:16,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:21:16,308 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 140 states and 180 transitions. [2021-11-19 04:21:16,310 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-19 04:21:16,311 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 140 states to 105 states and 128 transitions. [2021-11-19 04:21:16,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2021-11-19 04:21:16,311 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2021-11-19 04:21:16,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 128 transitions. [2021-11-19 04:21:16,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:21:16,312 INFO L681 BuchiCegarLoop]: Abstraction has 105 states and 128 transitions. [2021-11-19 04:21:16,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 128 transitions. [2021-11-19 04:21:16,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 54. [2021-11-19 04:21:16,314 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) [2021-11-19 04:21:16,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2021-11-19 04:21:16,315 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-11-19 04:21:16,315 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-11-19 04:21:16,315 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-11-19 04:21:16,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 65 transitions. [2021-11-19 04:21:16,315 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:21:16,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:21:16,315 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:21:16,317 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] [2021-11-19 04:21:16,317 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:21:16,317 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 [2021-11-19 04:21:16,317 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 [2021-11-19 04:21:16,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:16,318 INFO L85 PathProgramCache]: Analyzing trace with hash -840479618, now seen corresponding path program 1 times [2021-11-19 04:21:16,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:16,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110155984] [2021-11-19 04:21:16,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:16,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:16,359 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-19 04:21:16,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:21:16,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110155984] [2021-11-19 04:21:16,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110155984] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:21:16,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:21:16,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 04:21:16,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486557265] [2021-11-19 04:21:16,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:21:16,361 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:21:16,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:16,362 INFO L85 PathProgramCache]: Analyzing trace with hash 139186, now seen corresponding path program 2 times [2021-11-19 04:21:16,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:16,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701895419] [2021-11-19 04:21:16,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:16,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:16,368 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:21:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:16,373 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:21:16,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:21:16,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:21:16,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:21:16,530 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) [2021-11-19 04:21:16,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:21:16,562 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2021-11-19 04:21:16,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:21:16,563 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 66 transitions. [2021-11-19 04:21:16,564 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:21:16,564 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 53 states and 62 transitions. [2021-11-19 04:21:16,564 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2021-11-19 04:21:16,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-11-19 04:21:16,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 62 transitions. [2021-11-19 04:21:16,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:21:16,565 INFO L681 BuchiCegarLoop]: Abstraction has 53 states and 62 transitions. [2021-11-19 04:21:16,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 62 transitions. [2021-11-19 04:21:16,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-19 04:21:16,567 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) [2021-11-19 04:21:16,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 62 transitions. [2021-11-19 04:21:16,567 INFO L704 BuchiCegarLoop]: Abstraction has 53 states and 62 transitions. [2021-11-19 04:21:16,567 INFO L587 BuchiCegarLoop]: Abstraction has 53 states and 62 transitions. [2021-11-19 04:21:16,567 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-11-19 04:21:16,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 62 transitions. [2021-11-19 04:21:16,568 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:21:16,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:21:16,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:21:16,569 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] [2021-11-19 04:21:16,569 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:21:16,569 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 [2021-11-19 04:21:16,570 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 [2021-11-19 04:21:16,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:16,570 INFO L85 PathProgramCache]: Analyzing trace with hash 762752838, now seen corresponding path program 1 times [2021-11-19 04:21:16,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:16,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702728146] [2021-11-19 04:21:16,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:16,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:16,773 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 04:21:16,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:21:16,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702728146] [2021-11-19 04:21:16,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702728146] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:21:16,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689865237] [2021-11-19 04:21:16,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:16,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:21:16,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:16,776 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:21:16,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2021-11-19 04:21:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:16,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 62 conjunts are in the unsatisfiable core [2021-11-19 04:21:16,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:17,017 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 [2021-11-19 04:21:18,697 INFO L354 Elim1Store]: treesize reduction 31, result has 20.5 percent of original size [2021-11-19 04:21:18,697 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 [2021-11-19 04:21:18,740 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 04:21:18,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:21:19,435 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-19 04:21:19,436 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 [2021-11-19 04:21:19,451 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 04:21:19,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689865237] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:21:19,452 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:21:19,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 11] total 33 [2021-11-19 04:21:19,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318920599] [2021-11-19 04:21:19,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:21:19,453 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:21:19,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:19,454 INFO L85 PathProgramCache]: Analyzing trace with hash 139186, now seen corresponding path program 3 times [2021-11-19 04:21:19,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:19,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953911443] [2021-11-19 04:21:19,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:19,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:19,460 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:21:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:19,466 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:21:19,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:21:19,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-19 04:21:19,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=939, Unknown=0, NotChecked=0, Total=1056 [2021-11-19 04:21:19,635 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) [2021-11-19 04:21:20,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:21:20,465 INFO L93 Difference]: Finished difference Result 115 states and 129 transitions. [2021-11-19 04:21:20,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-19 04:21:20,467 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 115 states and 129 transitions. [2021-11-19 04:21:20,468 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:21:20,470 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 115 states to 93 states and 106 transitions. [2021-11-19 04:21:20,470 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-11-19 04:21:20,470 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2021-11-19 04:21:20,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 106 transitions. [2021-11-19 04:21:20,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:21:20,471 INFO L681 BuchiCegarLoop]: Abstraction has 93 states and 106 transitions. [2021-11-19 04:21:20,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 106 transitions. [2021-11-19 04:21:20,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 88. [2021-11-19 04:21:20,482 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) [2021-11-19 04:21:20,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 101 transitions. [2021-11-19 04:21:20,483 INFO L704 BuchiCegarLoop]: Abstraction has 88 states and 101 transitions. [2021-11-19 04:21:20,483 INFO L587 BuchiCegarLoop]: Abstraction has 88 states and 101 transitions. [2021-11-19 04:21:20,483 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-11-19 04:21:20,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 88 states and 101 transitions. [2021-11-19 04:21:20,484 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:21:20,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:21:20,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:21:20,485 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] [2021-11-19 04:21:20,489 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:21:20,490 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 [2021-11-19 04:21:20,494 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 [2021-11-19 04:21:20,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:20,495 INFO L85 PathProgramCache]: Analyzing trace with hash 717589665, now seen corresponding path program 2 times [2021-11-19 04:21:20,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:20,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700380772] [2021-11-19 04:21:20,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:20,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:20,642 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 04:21:20,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:21:20,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700380772] [2021-11-19 04:21:20,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700380772] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:21:20,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:21:20,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 04:21:20,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324180379] [2021-11-19 04:21:20,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:21:20,645 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:21:20,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:20,645 INFO L85 PathProgramCache]: Analyzing trace with hash 139186, now seen corresponding path program 4 times [2021-11-19 04:21:20,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:20,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111615464] [2021-11-19 04:21:20,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:20,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:20,653 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:21:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:20,661 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:21:20,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:21:20,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:21:20,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:21:20,819 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) [2021-11-19 04:21:20,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:21:20,895 INFO L93 Difference]: Finished difference Result 105 states and 118 transitions. [2021-11-19 04:21:20,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:21:20,896 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 118 transitions. [2021-11-19 04:21:20,897 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:21:20,898 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 101 states and 114 transitions. [2021-11-19 04:21:20,898 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-11-19 04:21:20,898 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-11-19 04:21:20,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 114 transitions. [2021-11-19 04:21:20,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:21:20,899 INFO L681 BuchiCegarLoop]: Abstraction has 101 states and 114 transitions. [2021-11-19 04:21:20,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 114 transitions. [2021-11-19 04:21:20,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2021-11-19 04:21:20,901 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) [2021-11-19 04:21:20,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 106 transitions. [2021-11-19 04:21:20,902 INFO L704 BuchiCegarLoop]: Abstraction has 93 states and 106 transitions. [2021-11-19 04:21:20,902 INFO L587 BuchiCegarLoop]: Abstraction has 93 states and 106 transitions. [2021-11-19 04:21:20,902 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-11-19 04:21:20,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states and 106 transitions. [2021-11-19 04:21:20,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:21:20,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:21:20,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:21:20,905 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] [2021-11-19 04:21:20,905 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:21:20,905 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 [2021-11-19 04:21:20,906 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 [2021-11-19 04:21:20,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:20,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1780692618, now seen corresponding path program 1 times [2021-11-19 04:21:20,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:20,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616494152] [2021-11-19 04:21:20,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:20,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:21:21,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:21:21,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616494152] [2021-11-19 04:21:21,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616494152] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:21:21,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561055711] [2021-11-19 04:21:21,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:21,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:21:21,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:21,092 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:21:21,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2021-11-19 04:21:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:21,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-19 04:21:21,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:21,270 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 [2021-11-19 04:21:21,406 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 04:21:21,406 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 [2021-11-19 04:21:21,413 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 04:21:21,414 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 [2021-11-19 04:21:21,654 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-19 04:21:21,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:21:22,063 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-19 04:21:22,064 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 [2021-11-19 04:21:22,130 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-19 04:21:22,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561055711] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:21:22,130 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:21:22,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 26 [2021-11-19 04:21:22,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372179385] [2021-11-19 04:21:22,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:21:22,132 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:21:22,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:22,132 INFO L85 PathProgramCache]: Analyzing trace with hash 139186, now seen corresponding path program 5 times [2021-11-19 04:21:22,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:22,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768822333] [2021-11-19 04:21:22,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:22,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:22,138 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:21:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:22,144 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:21:22,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:21:22,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-19 04:21:22,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=570, Unknown=0, NotChecked=0, Total=650 [2021-11-19 04:21:22,281 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) [2021-11-19 04:21:23,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:21:23,155 INFO L93 Difference]: Finished difference Result 229 states and 258 transitions. [2021-11-19 04:21:23,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-19 04:21:23,156 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 229 states and 258 transitions. [2021-11-19 04:21:23,158 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-11-19 04:21:23,160 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 229 states to 187 states and 214 transitions. [2021-11-19 04:21:23,160 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2021-11-19 04:21:23,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2021-11-19 04:21:23,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 187 states and 214 transitions. [2021-11-19 04:21:23,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:21:23,161 INFO L681 BuchiCegarLoop]: Abstraction has 187 states and 214 transitions. [2021-11-19 04:21:23,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states and 214 transitions. [2021-11-19 04:21:23,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 109. [2021-11-19 04:21:23,165 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) [2021-11-19 04:21:23,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 124 transitions. [2021-11-19 04:21:23,165 INFO L704 BuchiCegarLoop]: Abstraction has 109 states and 124 transitions. [2021-11-19 04:21:23,166 INFO L587 BuchiCegarLoop]: Abstraction has 109 states and 124 transitions. [2021-11-19 04:21:23,166 INFO L425 BuchiCegarLoop]: ======== Iteration 18============ [2021-11-19 04:21:23,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 124 transitions. [2021-11-19 04:21:23,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:21:23,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:21:23,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:21:23,168 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] [2021-11-19 04:21:23,168 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:21:23,168 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 [2021-11-19 04:21:23,169 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 [2021-11-19 04:21:23,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:23,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1191678414, now seen corresponding path program 1 times [2021-11-19 04:21:23,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:23,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096591229] [2021-11-19 04:21:23,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:23,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:23,313 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-19 04:21:23,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:21:23,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096591229] [2021-11-19 04:21:23,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096591229] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:21:23,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188273960] [2021-11-19 04:21:23,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:23,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:21:23,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:23,317 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:21:23,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2021-11-19 04:21:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:23,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 04:21:23,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:23,462 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 [2021-11-19 04:21:23,680 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-19 04:21:23,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:21:23,870 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-19 04:21:23,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188273960] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:21:23,871 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:21:23,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 18 [2021-11-19 04:21:23,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571813179] [2021-11-19 04:21:23,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:21:23,872 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:21:23,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:23,872 INFO L85 PathProgramCache]: Analyzing trace with hash 139186, now seen corresponding path program 6 times [2021-11-19 04:21:23,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:23,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257511295] [2021-11-19 04:21:23,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:23,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:23,878 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:21:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:23,883 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:21:24,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:21:24,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 04:21:24,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2021-11-19 04:21:24,041 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) [2021-11-19 04:21:24,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:21:24,227 INFO L93 Difference]: Finished difference Result 133 states and 148 transitions. [2021-11-19 04:21:24,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 04:21:24,228 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 133 states and 148 transitions. [2021-11-19 04:21:24,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:21:24,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 133 states to 115 states and 130 transitions. [2021-11-19 04:21:24,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2021-11-19 04:21:24,231 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2021-11-19 04:21:24,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 130 transitions. [2021-11-19 04:21:24,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:21:24,232 INFO L681 BuchiCegarLoop]: Abstraction has 115 states and 130 transitions. [2021-11-19 04:21:24,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 130 transitions. [2021-11-19 04:21:24,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2021-11-19 04:21:24,235 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) [2021-11-19 04:21:24,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 128 transitions. [2021-11-19 04:21:24,236 INFO L704 BuchiCegarLoop]: Abstraction has 113 states and 128 transitions. [2021-11-19 04:21:24,236 INFO L587 BuchiCegarLoop]: Abstraction has 113 states and 128 transitions. [2021-11-19 04:21:24,236 INFO L425 BuchiCegarLoop]: ======== Iteration 19============ [2021-11-19 04:21:24,236 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 113 states and 128 transitions. [2021-11-19 04:21:24,237 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:21:24,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:21:24,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:21:24,238 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] [2021-11-19 04:21:24,238 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:21:24,239 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 [2021-11-19 04:21:24,239 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 [2021-11-19 04:21:24,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:24,240 INFO L85 PathProgramCache]: Analyzing trace with hash 283927796, now seen corresponding path program 2 times [2021-11-19 04:21:24,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:24,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148459785] [2021-11-19 04:21:24,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:24,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:24,461 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-19 04:21:24,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:21:24,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148459785] [2021-11-19 04:21:24,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148459785] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:21:24,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949718447] [2021-11-19 04:21:24,462 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 04:21:24,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:21:24,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:24,463 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:21:24,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2021-11-19 04:21:24,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 04:21:24,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:21:24,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-19 04:21:24,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:24,619 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 [2021-11-19 04:21:24,731 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-19 04:21:24,732 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 [2021-11-19 04:21:24,740 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-19 04:21:24,740 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 [2021-11-19 04:21:25,110 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:21:25,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:21:25,467 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-19 04:21:25,467 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 [2021-11-19 04:21:25,608 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:21:25,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949718447] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:21:25,609 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:21:25,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 28 [2021-11-19 04:21:25,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153859367] [2021-11-19 04:21:25,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:21:25,610 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:21:25,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:25,610 INFO L85 PathProgramCache]: Analyzing trace with hash 139186, now seen corresponding path program 7 times [2021-11-19 04:21:25,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:25,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889587636] [2021-11-19 04:21:25,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:25,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:25,615 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:21:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:25,621 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:21:25,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:21:25,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-19 04:21:25,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=667, Unknown=0, NotChecked=0, Total=756 [2021-11-19 04:21:25,778 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) [2021-11-19 04:21:27,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:21:27,183 INFO L93 Difference]: Finished difference Result 310 states and 349 transitions. [2021-11-19 04:21:27,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-19 04:21:27,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 310 states and 349 transitions. [2021-11-19 04:21:27,187 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-11-19 04:21:27,189 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 310 states to 235 states and 271 transitions. [2021-11-19 04:21:27,190 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 75 [2021-11-19 04:21:27,190 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 75 [2021-11-19 04:21:27,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 235 states and 271 transitions. [2021-11-19 04:21:27,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:21:27,190 INFO L681 BuchiCegarLoop]: Abstraction has 235 states and 271 transitions. [2021-11-19 04:21:27,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states and 271 transitions. [2021-11-19 04:21:27,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 100. [2021-11-19 04:21:27,194 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) [2021-11-19 04:21:27,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 113 transitions. [2021-11-19 04:21:27,194 INFO L704 BuchiCegarLoop]: Abstraction has 100 states and 113 transitions. [2021-11-19 04:21:27,195 INFO L587 BuchiCegarLoop]: Abstraction has 100 states and 113 transitions. [2021-11-19 04:21:27,195 INFO L425 BuchiCegarLoop]: ======== Iteration 20============ [2021-11-19 04:21:27,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 113 transitions. [2021-11-19 04:21:27,196 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:21:27,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:21:27,196 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:21:27,197 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] [2021-11-19 04:21:27,197 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:21:27,197 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 [2021-11-19 04:21:27,198 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 [2021-11-19 04:21:27,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:27,198 INFO L85 PathProgramCache]: Analyzing trace with hash -131927407, now seen corresponding path program 2 times [2021-11-19 04:21:27,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:27,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405838296] [2021-11-19 04:21:27,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:27,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:27,500 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 04:21:27,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:21:27,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405838296] [2021-11-19 04:21:27,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405838296] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:21:27,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226688444] [2021-11-19 04:21:27,501 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 04:21:27,501 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:21:27,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:27,511 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:21:27,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2021-11-19 04:21:27,698 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 04:21:27,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:21:27,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-19 04:21:27,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:28,157 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 04:21:28,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:21:28,696 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 04:21:28,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226688444] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:21:28,696 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:21:28,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 31 [2021-11-19 04:21:28,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809987108] [2021-11-19 04:21:28,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:21:28,697 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:21:28,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:28,698 INFO L85 PathProgramCache]: Analyzing trace with hash 139186, now seen corresponding path program 8 times [2021-11-19 04:21:28,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:28,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609967326] [2021-11-19 04:21:28,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:28,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:28,704 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:21:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:21:28,709 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:21:28,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:21:28,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-19 04:21:28,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2021-11-19 04:21:28,858 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) [2021-11-19 04:21:29,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:21:29,252 INFO L93 Difference]: Finished difference Result 223 states and 254 transitions. [2021-11-19 04:21:29,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 04:21:29,256 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223 states and 254 transitions. [2021-11-19 04:21:29,258 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-11-19 04:21:29,263 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223 states to 202 states and 232 transitions. [2021-11-19 04:21:29,263 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 64 [2021-11-19 04:21:29,264 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 64 [2021-11-19 04:21:29,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 202 states and 232 transitions. [2021-11-19 04:21:29,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:21:29,268 INFO L681 BuchiCegarLoop]: Abstraction has 202 states and 232 transitions. [2021-11-19 04:21:29,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states and 232 transitions. [2021-11-19 04:21:29,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 103. [2021-11-19 04:21:29,271 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) [2021-11-19 04:21:29,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 116 transitions. [2021-11-19 04:21:29,272 INFO L704 BuchiCegarLoop]: Abstraction has 103 states and 116 transitions. [2021-11-19 04:21:29,272 INFO L587 BuchiCegarLoop]: Abstraction has 103 states and 116 transitions. [2021-11-19 04:21:29,272 INFO L425 BuchiCegarLoop]: ======== Iteration 21============ [2021-11-19 04:21:29,273 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 103 states and 116 transitions. [2021-11-19 04:21:29,273 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:21:29,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:21:29,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:21:29,274 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] [2021-11-19 04:21:29,275 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:21:29,275 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 [2021-11-19 04:21:29,275 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 [2021-11-19 04:21:29,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:21:29,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1792797110, now seen corresponding path program 3 times [2021-11-19 04:21:29,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:21:29,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726828677] [2021-11-19 04:21:29,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:21:29,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:21:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:21:29,455 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-19 04:21:29,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:21:29,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726828677] [2021-11-19 04:21:29,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726828677] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:21:29,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316074616] [2021-11-19 04:21:29,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 04:21:29,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:21:29,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:21:29,457 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:21:29,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1bbb48-b59f-4ac8-8426-c0092c18839c/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2021-11-19 04:21:29,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-19 04:21:29,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:21:29,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-19 04:21:29,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:21:30,261 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-19 04:21:30,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:21:45,717 WARN L227 SmtUtils]: Spent 10.27s 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) [2021-11-19 04:21:54,763 WARN L227 SmtUtils]: Spent 9.04s 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) [2021-11-19 04:22:10,230 WARN L227 SmtUtils]: Spent 15.46s 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) [2021-11-19 04:22:22,796 WARN L227 SmtUtils]: Spent 12.56s 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) [2021-11-19 04:22:48,521 WARN L227 SmtUtils]: Spent 21.36s 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) [2021-11-19 04:23:06,859 WARN L227 SmtUtils]: Spent 13.60s 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) [2021-11-19 04:23:31,069 WARN L227 SmtUtils]: Spent 18.42s 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) [2021-11-19 04:23:44,428 WARN L227 SmtUtils]: Spent 13.36s 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) [2021-11-19 04:23:58,906 WARN L227 SmtUtils]: Spent 9.51s 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) [2021-11-19 04:24:16,547 WARN L227 SmtUtils]: Spent 17.03s 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) [2021-11-19 04:24:31,547 WARN L227 SmtUtils]: Spent 14.99s 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) [2021-11-19 04:24:47,028 WARN L227 SmtUtils]: Spent 13.44s 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) [2021-11-19 04:24:57,995 WARN L227 SmtUtils]: Spent 7.02s 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) [2021-11-19 04:25:03,219 WARN L227 SmtUtils]: Spent 5.22s 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) [2021-11-19 04:25:11,318 WARN L227 SmtUtils]: Spent 8.10s 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) [2021-11-19 04:25:29,415 WARN L227 SmtUtils]: Spent 18.09s 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) [2021-11-19 04:25:34,947 WARN L227 SmtUtils]: Spent 5.52s 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) [2021-11-19 04:25:52,468 WARN L227 SmtUtils]: Spent 17.52s 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) [2021-11-19 04:26:00,543 WARN L227 SmtUtils]: Spent 8.07s 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) [2021-11-19 04:26:05,835 WARN L227 SmtUtils]: Spent 5.29s 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) [2021-11-19 04:26:20,744 WARN L227 SmtUtils]: Spent 14.91s 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) [2021-11-19 04:26:27,094 WARN L227 SmtUtils]: Spent 6.35s 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) [2021-11-19 04:26:32,992 WARN L227 SmtUtils]: Spent 5.90s 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) [2021-11-19 04:26:44,971 WARN L227 SmtUtils]: Spent 11.97s 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) [2021-11-19 04:26:54,284 WARN L227 SmtUtils]: Spent 6.29s 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) [2021-11-19 04:27:00,442 WARN L227 SmtUtils]: Spent 6.16s 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) [2021-11-19 04:27:15,185 WARN L227 SmtUtils]: Spent 12.49s 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) [2021-11-19 04:27:33,725 WARN L227 SmtUtils]: Spent 18.54s 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) [2021-11-19 04:27:39,989 WARN L227 SmtUtils]: Spent 6.26s 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) [2021-11-19 04:27:50,256 WARN L227 SmtUtils]: Spent 10.26s 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) [2021-11-19 04:27:57,912 WARN L227 SmtUtils]: Spent 7.65s 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) [2021-11-19 04:28:24,392 WARN L227 SmtUtils]: Spent 15.30s 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) [2021-11-19 04:28:48,538 WARN L227 SmtUtils]: Spent 24.14s 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) [2021-11-19 04:29:05,941 WARN L227 SmtUtils]: Spent 14.61s 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) [2021-11-19 04:29:26,076 WARN L227 SmtUtils]: Spent 20.13s 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) [2021-11-19 04:29:35,339 WARN L227 SmtUtils]: Spent 9.26s 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) [2021-11-19 04:29:55,681 WARN L227 SmtUtils]: Spent 12.86s 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) [2021-11-19 04:30:11,098 WARN L227 SmtUtils]: Spent 14.72s 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) [2021-11-19 04:30:19,675 WARN L227 SmtUtils]: Spent 6.75s 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) [2021-11-19 04:30:27,905 WARN L227 SmtUtils]: Spent 8.23s 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) [2021-11-19 04:30:44,358 WARN L227 SmtUtils]: Spent 16.45s 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) [2021-11-19 04:30:54,186 WARN L227 SmtUtils]: Spent 9.83s 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) [2021-11-19 04:31:15,466 WARN L227 SmtUtils]: Spent 21.28s 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) [2021-11-19 04:31:42,930 WARN L227 SmtUtils]: Spent 24.16s 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) [2021-11-19 04:32:05,513 WARN L227 SmtUtils]: Spent 12.69s 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) [2021-11-19 04:32:11,608 WARN L227 SmtUtils]: Spent 6.09s 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) [2021-11-19 04:32:28,504 WARN L227 SmtUtils]: Spent 16.89s 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) [2021-11-19 04:32:41,249 WARN L227 SmtUtils]: Spent 12.74s 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) [2021-11-19 04:32:59,935 WARN L227 SmtUtils]: Spent 18.68s 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) [2021-11-19 04:33:20,067 WARN L227 SmtUtils]: Spent 20.13s 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) [2021-11-19 04:33:25,416 WARN L227 SmtUtils]: Spent 5.35s 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) [2021-11-19 04:33:40,365 WARN L227 SmtUtils]: Spent 14.95s 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) [2021-11-19 04:33:49,092 WARN L227 SmtUtils]: Spent 8.72s 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) [2021-11-19 04:34:05,430 WARN L227 SmtUtils]: Spent 15.82s 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) [2021-11-19 04:34:14,962 WARN L227 SmtUtils]: Spent 9.53s 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) [2021-11-19 04:34:34,043 WARN L227 SmtUtils]: Spent 19.08s 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) [2021-11-19 04:34:41,846 WARN L227 SmtUtils]: Spent 7.80s 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)