./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 e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strstr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0742fe35695220aa1b2c7e9e5d203b67221f8a868e729b5e5e08b32af5cde41b ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:54:44,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:54:44,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:54:44,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:54:44,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:54:44,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:54:44,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:54:44,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:54:44,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:54:44,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:54:44,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:54:44,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:54:44,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:54:44,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:54:44,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:54:44,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:54:44,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:54:44,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:54:44,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:54:44,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:54:44,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:54:44,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:54:44,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:54:44,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:54:44,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:54:44,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:54:44,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:54:44,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:54:44,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:54:44,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:54:44,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:54:44,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:54:44,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:54:44,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:54:44,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:54:44,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:54:44,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:54:44,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:54:44,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:54:44,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:54:44,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:54:44,986 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 19:54:45,043 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:54:45,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:54:45,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:54:45,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:54:45,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:54:45,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:54:45,048 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:54:45,048 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:54:45,048 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:54:45,049 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:54:45,050 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:54:45,050 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:54:45,051 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:54:45,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:54:45,051 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:54:45,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:54:45,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:54:45,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:54:45,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:54:45,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:54:45,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:54:45,053 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:54:45,053 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:54:45,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:54:45,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:54:45,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:54:45,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:54:45,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:54:45,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:54:45,058 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:54:45,059 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_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0742fe35695220aa1b2c7e9e5d203b67221f8a868e729b5e5e08b32af5cde41b [2021-10-21 19:54:45,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:54:45,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:54:45,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:54:45,493 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:54:45,494 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:54:45,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-dietlibc/strstr.i [2021-10-21 19:54:45,581 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/data/58fe5d25a/e1d566b807ee4fdcb3967c2da8760848/FLAG0781318df [2021-10-21 19:54:46,246 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:54:46,247 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/sv-benchmarks/c/termination-dietlibc/strstr.i [2021-10-21 19:54:46,276 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/data/58fe5d25a/e1d566b807ee4fdcb3967c2da8760848/FLAG0781318df [2021-10-21 19:54:46,462 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/data/58fe5d25a/e1d566b807ee4fdcb3967c2da8760848 [2021-10-21 19:54:46,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:54:46,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:54:46,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:54:46,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:54:46,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:54:46,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:54:46" (1/1) ... [2021-10-21 19:54:46,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cec172c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:46, skipping insertion in model container [2021-10-21 19:54:46,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:54:46" (1/1) ... [2021-10-21 19:54:46,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:54:46,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:54:47,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:54:47,018 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:54:47,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:54:47,142 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:54:47,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:47 WrapperNode [2021-10-21 19:54:47,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:54:47,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:54:47,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:54:47,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:54:47,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:47" (1/1) ... [2021-10-21 19:54:47,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:47" (1/1) ... [2021-10-21 19:54:47,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:54:47,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:54:47,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:54:47,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:54:47,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:47" (1/1) ... [2021-10-21 19:54:47,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:47" (1/1) ... [2021-10-21 19:54:47,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:47" (1/1) ... [2021-10-21 19:54:47,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:47" (1/1) ... [2021-10-21 19:54:47,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:47" (1/1) ... [2021-10-21 19:54:47,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:47" (1/1) ... [2021-10-21 19:54:47,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:47" (1/1) ... [2021-10-21 19:54:47,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:54:47,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:54:47,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:54:47,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:54:47,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:47" (1/1) ... [2021-10-21 19:54:47,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:47,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:47,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:47,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:54:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:54:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:54:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:54:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:54:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:54:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:54:47,889 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:54:47,889 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-21 19:54:47,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:54:47 BoogieIcfgContainer [2021-10-21 19:54:47,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:54:47,893 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:54:47,893 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:54:47,897 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:54:47,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:54:47,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:54:46" (1/3) ... [2021-10-21 19:54:47,908 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52680c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:54:47, skipping insertion in model container [2021-10-21 19:54:47,908 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:54:47,909 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:54:47" (2/3) ... [2021-10-21 19:54:47,909 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52680c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:54:47, skipping insertion in model container [2021-10-21 19:54:47,909 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:54:47,909 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:54:47" (3/3) ... [2021-10-21 19:54:47,911 INFO L389 chiAutomizerObserver]: Analyzing ICFG strstr.i [2021-10-21 19:54:47,964 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:54:47,965 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:54:47,965 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:54:47,965 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:54:47,965 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:54:47,965 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:54:47,965 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:54:47,965 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:54:47,984 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 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) [2021-10-21 19:54:48,008 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-10-21 19:54:48,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:54:48,008 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:54:48,015 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-21 19:54:48,015 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:54:48,015 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:54:48,016 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 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) [2021-10-21 19:54:48,020 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-10-21 19:54:48,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:54:48,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:54:48,021 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-21 19:54:48,021 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:54:48,029 INFO L791 eck$LassoCheckResult]: Stem: 21#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 5#L-1true havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 12#L541true assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 23#L545true assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 31#L508true assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 29#L509-4true [2021-10-21 19:54:48,029 INFO L793 eck$LassoCheckResult]: Loop: 29#L509-4true call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 16#L509-1true assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 11#L509-3true strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 29#L509-4true [2021-10-21 19:54:48,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:48,036 INFO L82 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2021-10-21 19:54:48,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:48,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594649582] [2021-10-21 19:54:48,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:48,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:48,181 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:48,241 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:48,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:48,245 INFO L82 PathProgramCache]: Analyzing trace with hash 50806, now seen corresponding path program 1 times [2021-10-21 19:54:48,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:48,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644810406] [2021-10-21 19:54:48,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:48,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:48,300 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:48,310 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:48,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:48,313 INFO L82 PathProgramCache]: Analyzing trace with hash 179566670, now seen corresponding path program 1 times [2021-10-21 19:54:48,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:48,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454358850] [2021-10-21 19:54:48,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:48,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:48,404 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:48,478 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:49,680 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:54:49,681 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:54:49,681 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:54:49,681 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:54:49,682 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:54:49,682 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:49,682 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:54:49,682 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:54:49,682 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration1_Lasso [2021-10-21 19:54:49,683 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:54:49,683 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:54:49,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:49,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:49,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:49,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:49,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:49,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:49,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:49,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:49,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:49,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:49,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:49,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:49,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:50,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:50,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:50,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:50,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:50,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:50,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:50,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:50,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:50,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:50,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:50,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:50,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:50,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:50,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:50,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:50,827 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:54:50,833 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:54:50,835 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:50,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:50,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:50,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:50,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:50,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:50,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:50,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:50,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:50,871 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:50,872 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:50,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:54:50,890 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:50,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:50,939 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:50,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:50,942 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:50,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:50,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:50,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:50,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:50,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:50,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:50,969 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:50,969 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:50,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:54:50,971 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:51,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:51,007 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:51,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:51,017 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:51,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:54:51,031 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:51,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:51,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:51,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:51,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:51,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:51,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:51,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:51,057 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:51,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:51,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:51,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:51,089 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:51,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:54:51,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:51,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:51,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:51,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:51,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:51,118 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:51,118 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:51,122 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:51,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:51,147 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:51,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:51,148 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:51,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:54:51,149 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:51,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:51,159 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:51,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:51,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:51,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:51,160 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:51,160 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:51,162 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:51,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:51,187 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:51,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:51,190 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:51,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:54:51,192 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:51,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:51,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:51,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:51,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:51,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:51,204 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:51,204 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:51,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:51,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:51,236 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:51,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:51,237 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:51,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:54:51,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:51,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:51,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:51,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:51,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:51,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:51,251 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:51,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:51,257 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:51,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:51,285 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:51,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:51,286 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:51,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:54:51,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:51,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:51,298 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:51,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:51,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:51,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:51,299 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:51,299 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:51,301 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:51,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:51,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:51,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:51,330 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:51,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:54:51,333 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:51,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:51,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:51,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:51,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:51,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:51,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:51,343 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:51,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:51,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:51,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:51,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:51,380 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:51,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 19:54:51,383 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:51,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:51,392 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:51,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:51,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:51,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:51,393 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:51,393 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:51,405 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:51,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:51,442 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:51,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:51,444 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:51,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 19:54:51,449 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:51,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:51,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:51,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:51,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:51,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:51,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:51,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:51,473 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:51,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:51,518 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:51,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:51,519 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:51,526 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:51,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:51,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:51,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:51,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:51,541 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:51,541 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:51,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 19:54:51,569 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:51,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:51,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:51,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:51,601 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:51,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 19:54:51,603 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:51,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:51,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:51,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:51,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:51,626 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:51,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:51,649 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:51,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:51,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:51,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:51,698 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:51,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:51,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:51,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:51,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:51,718 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 19:54:51,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:51,720 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:54:51,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:51,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 19:54:51,735 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:51,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-10-21 19:54:51,760 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:51,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:51,761 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:51,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 19:54:51,763 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:51,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:51,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:51,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:51,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:51,782 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:51,782 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:51,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:51,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:51,845 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:51,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:51,846 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:51,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 19:54:51,852 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 [2021-10-21 19:54:51,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:51,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:51,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:51,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:51,863 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:51,863 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:51,878 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:51,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:51,906 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:51,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:51,907 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:51,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 19:54:51,912 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:51,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:51,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:51,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:51,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:51,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:51,939 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:51,961 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:52,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:52,003 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:52,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:52,005 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:52,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:52,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:52,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:52,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:52,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:52,030 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:52,030 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:52,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 19:54:52,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:52,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:52,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:52,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:52,079 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:52,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 19:54:52,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:52,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:52,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:52,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:52,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:52,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:52,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:52,125 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:54:52,229 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2021-10-21 19:54:52,230 INFO L444 ModelExtractionUtils]: 8 out of 31 variables were initially zero. Simplification set additionally 18 variables to zero. [2021-10-21 19:54:52,232 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:52,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:52,246 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:52,291 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:54:52,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 19:54:52,323 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-21 19:54:52,324 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:54:52,324 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~out_len~0, ULTIMATE.start_strlen_~s.offset) = 1*ULTIMATE.start_main_~out_len~0 - 1*ULTIMATE.start_strlen_~s.offset Supporting invariants [-1*v_rep(select #length ULTIMATE.start_main_#t~malloc22.base)_1 + 1*ULTIMATE.start_main_~out_len~0 >= 0] [2021-10-21 19:54:52,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:52,427 INFO L297 tatePredicateManager]: 8 out of 10 supporting invariants were superfluous and have been removed [2021-10-21 19:54:52,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:54:52,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 19:54:52,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:54:52,621 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 [2021-10-21 19:54:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:54:52,658 WARN L261 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 19:54:52,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:54:52,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:54:52,736 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 [2021-10-21 19:54:52,738 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 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) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:52,853 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 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). Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 90 states and 130 transitions. Complement of second has 7 states. [2021-10-21 19:54:52,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:54:52,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:52,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 85 transitions. [2021-10-21 19:54:52,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-21 19:54:52,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:54:52,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 8 letters. Loop has 3 letters. [2021-10-21 19:54:52,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:54:52,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 5 letters. Loop has 6 letters. [2021-10-21 19:54:52,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:54:52,876 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 130 transitions. [2021-10-21 19:54:52,882 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 24 [2021-10-21 19:54:52,887 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 47 states and 62 transitions. [2021-10-21 19:54:52,890 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2021-10-21 19:54:52,890 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-10-21 19:54:52,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 62 transitions. [2021-10-21 19:54:52,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:54:52,891 INFO L681 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2021-10-21 19:54:52,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 62 transitions. [2021-10-21 19:54:52,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:52,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-21 19:54:52,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 46 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) [2021-10-21 19:54:52,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2021-10-21 19:54:52,931 INFO L704 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2021-10-21 19:54:52,932 INFO L587 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2021-10-21 19:54:52,932 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:54:52,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 62 transitions. [2021-10-21 19:54:52,934 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 24 [2021-10-21 19:54:52,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:54:52,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:54:52,935 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:52,935 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:54:52,936 INFO L791 eck$LassoCheckResult]: Stem: 245#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 222#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 223#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 237#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 247#L508 assume strlen_~s.base == 0 && strlen_~s.offset == 0;strlen_#res := 0; 255#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 262#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 263#L509-10 [2021-10-21 19:54:52,936 INFO L793 eck$LassoCheckResult]: Loop: 263#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 265#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 266#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 263#L509-10 [2021-10-21 19:54:52,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:52,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1806906284, now seen corresponding path program 1 times [2021-10-21 19:54:52,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:52,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650262580] [2021-10-21 19:54:52,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:52,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:54:53,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:54:53,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:54:53,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650262580] [2021-10-21 19:54:53,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650262580] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:54:53,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:54:53,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:54:53,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255119953] [2021-10-21 19:54:53,028 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:54:53,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:53,029 INFO L82 PathProgramCache]: Analyzing trace with hash 72652, now seen corresponding path program 1 times [2021-10-21 19:54:53,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:53,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898619003] [2021-10-21 19:54:53,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:53,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:53,057 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:53,072 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:53,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:54:53,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:54:53,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:54:53,136 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. cyclomatic complexity: 20 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:53,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:54:53,160 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2021-10-21 19:54:53,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:54:53,162 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-10-21 19:54:53,170 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-10-21 19:54:53,172 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 36 transitions. [2021-10-21 19:54:53,173 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2021-10-21 19:54:53,174 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-10-21 19:54:53,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 36 transitions. [2021-10-21 19:54:53,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:54:53,174 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-10-21 19:54:53,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 36 transitions. [2021-10-21 19:54:53,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-21 19:54:53,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 28 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:53,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2021-10-21 19:54:53,185 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-10-21 19:54:53,185 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-10-21 19:54:53,186 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:54:53,186 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 36 transitions. [2021-10-21 19:54:53,189 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-10-21 19:54:53,191 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:54:53,192 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:54:53,193 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:53,193 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:54:53,194 INFO L791 eck$LassoCheckResult]: Stem: 325#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 304#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 305#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 317#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 326#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 330#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 321#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 319#L509-5 strlen_#res := strlen_~i~0; 320#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 323#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 318#L509-10 [2021-10-21 19:54:53,194 INFO L793 eck$LassoCheckResult]: Loop: 318#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 306#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 307#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 318#L509-10 [2021-10-21 19:54:53,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:53,201 INFO L82 PathProgramCache]: Analyzing trace with hash 764823385, now seen corresponding path program 1 times [2021-10-21 19:54:53,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:53,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791785211] [2021-10-21 19:54:53,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:53,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:53,231 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:53,278 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:53,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:53,285 INFO L82 PathProgramCache]: Analyzing trace with hash 72652, now seen corresponding path program 2 times [2021-10-21 19:54:53,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:53,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372616015] [2021-10-21 19:54:53,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:53,286 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:53,294 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:53,308 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:53,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:53,310 INFO L82 PathProgramCache]: Analyzing trace with hash 52000116, now seen corresponding path program 1 times [2021-10-21 19:54:53,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:53,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378011215] [2021-10-21 19:54:53,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:53,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:53,354 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:53,383 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:54,541 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:54:54,541 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:54:54,542 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:54:54,542 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:54:54,542 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:54:54,542 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:54,542 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:54:54,542 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:54:54,542 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration3_Lasso [2021-10-21 19:54:54,542 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:54:54,542 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:54:54,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:54,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:55,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:55,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:55,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:55,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:55,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:55,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:55,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:55,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:55,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:54:55,692 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:54:55,693 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:54:55,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:55,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:55,698 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:55,701 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:55,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:55,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:55,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:55,713 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:55,713 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:55,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:55,714 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:55,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 19:54:55,729 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:55,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:55,774 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:55,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:55,775 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:55,779 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:55,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:55,790 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:55,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:55,790 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:55,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:55,792 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:55,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:55,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 19:54:55,801 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:55,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:55,846 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:55,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:55,847 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:55,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 19:54:55,853 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:55,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:55,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:55,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:55,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:55,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:55,863 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:55,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:55,865 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:55,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-21 19:54:55,893 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:55,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:55,894 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:55,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 19:54:55,896 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:55,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:55,906 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:55,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:55,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:55,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:55,906 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:55,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:55,907 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:55,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-21 19:54:55,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:55,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:55,935 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:55,944 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 [2021-10-21 19:54:55,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 19:54:55,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:55,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:55,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:55,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:55,955 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:55,955 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:55,980 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:56,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:56,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:56,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:56,006 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:56,008 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:56,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 19:54:56,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:56,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:56,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:56,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:56,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:56,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:56,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:56,019 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:56,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-21 19:54:56,044 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:56,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:56,045 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:56,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:56,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-21 19:54:56,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:56,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:56,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:56,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:56,059 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:56,059 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:56,085 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:56,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:56,110 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:56,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:56,111 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:56,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 19:54:56,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:56,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:56,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:56,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:56,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:56,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:56,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:56,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:56,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:56,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-21 19:54:56,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:56,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:56,149 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:56,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 19:54:56,151 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:56,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:56,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:56,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:56,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:56,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:56,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:56,161 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:56,162 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:56,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-21 19:54:56,186 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:56,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:56,187 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:56,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-21 19:54:56,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:56,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:56,197 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:56,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:56,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:56,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:56,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:56,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:56,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:56,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:56,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:56,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:56,228 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:56,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-21 19:54:56,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:56,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:56,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:56,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:56,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:56,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:56,240 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:56,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:56,241 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:56,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-21 19:54:56,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:56,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:56,267 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:56,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-21 19:54:56,268 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:56,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:56,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:56,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:56,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:56,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:56,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:56,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:56,287 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:56,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:56,320 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:56,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:56,321 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:56,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-21 19:54:56,322 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:56,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:56,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:56,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:56,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:56,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:56,331 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:56,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:56,361 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:56,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:56,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:56,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:56,408 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:56,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:56,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:56,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:56,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:56,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:56,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:56,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:56,427 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:56,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-21 19:54:56,428 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:56,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-21 19:54:56,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:56,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:56,454 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:56,455 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:56,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-21 19:54:56,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:56,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:56,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:56,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:56,466 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:56,466 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:56,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:56,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-21 19:54:56,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:56,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:56,509 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:56,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:56,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-21 19:54:56,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:56,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:56,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:56,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:56,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:56,521 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:56,521 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:56,522 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:56,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-21 19:54:56,547 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:56,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:56,548 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:56,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-21 19:54:56,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:56,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:56,560 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:56,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:56,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:56,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:56,561 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:56,561 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:56,573 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:56,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-21 19:54:56,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:56,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:56,600 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:56,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-21 19:54:56,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:56,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:56,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:56,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:56,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:56,624 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:56,624 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:56,649 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:56,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:56,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:56,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:56,694 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:56,708 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:56,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:56,723 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:56,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:56,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:56,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:56,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:54:56,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:56,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-21 19:54:56,738 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:56,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:56,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:56,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:56,790 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:56,794 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 [2021-10-21 19:54:56,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-21 19:54:56,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:56,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:56,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:56,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:56,810 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:56,811 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:56,825 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:56,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:56,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:56,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:56,867 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:56,870 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:56,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:56,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:56,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:56,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:56,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:56,888 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:56,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-21 19:54:56,913 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:56,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:56,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:56,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:56,955 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:56,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:56,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-21 19:54:56,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:56,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:56,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:56,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:56,970 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:56,970 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:56,982 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:57,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-21 19:54:57,007 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:57,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:57,008 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:57,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-21 19:54:57,009 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:57,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:57,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:57,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:57,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:57,022 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:57,022 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:57,029 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:57,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-21 19:54:57,054 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:57,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:57,055 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:57,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-21 19:54:57,060 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 [2021-10-21 19:54:57,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:57,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:57,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:57,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:57,071 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:57,071 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:57,074 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:57,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-10-21 19:54:57,099 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:57,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:57,099 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:57,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-21 19:54:57,103 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:57,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:57,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:54:57,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:57,112 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 19:54:57,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:57,113 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:54:57,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:54:57,123 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:57,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:57,147 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:57,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:57,148 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:57,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-21 19:54:57,150 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:57,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:57,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:57,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:57,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:57,169 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:57,169 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:57,197 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:54:57,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-21 19:54:57,238 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:57,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:57,239 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:57,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:54:57,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:54:57,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:54:57,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:54:57,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:54:57,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-21 19:54:57,261 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:54:57,262 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:54:57,293 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:54:57,317 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-21 19:54:57,317 INFO L444 ModelExtractionUtils]: 23 out of 31 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-10-21 19:54:57,317 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:54:57,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:57,322 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:54:57,326 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:54:57,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-21 19:54:57,351 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:54:57,351 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:54:57,351 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc20.base)_2, ULTIMATE.start_strlen_~s.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc20.base)_2 - 1*ULTIMATE.start_strlen_~s.offset Supporting invariants [] [2021-10-21 19:54:57,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:57,447 INFO L297 tatePredicateManager]: 15 out of 16 supporting invariants were superfluous and have been removed [2021-10-21 19:54:57,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:54:57,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 19:54:57,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:54:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:54:57,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:54:57,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:54:57,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:54:57,676 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 [2021-10-21 19:54:57,676 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 10 Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:57,794 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 10. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 57 states and 72 transitions. Complement of second has 7 states. [2021-10-21 19:54:57,795 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 [2021-10-21 19:54:57,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:57,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 48 transitions. [2021-10-21 19:54:57,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-21 19:54:57,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:54:57,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 13 letters. Loop has 3 letters. [2021-10-21 19:54:57,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:54:57,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-21 19:54:57,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:54:57,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 72 transitions. [2021-10-21 19:54:57,798 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-21 19:54:57,799 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 43 states and 54 transitions. [2021-10-21 19:54:57,800 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-21 19:54:57,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2021-10-21 19:54:57,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 54 transitions. [2021-10-21 19:54:57,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:54:57,801 INFO L681 BuchiCegarLoop]: Abstraction has 43 states and 54 transitions. [2021-10-21 19:54:57,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 54 transitions. [2021-10-21 19:54:57,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2021-10-21 19:54:57,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:57,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2021-10-21 19:54:57,806 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-10-21 19:54:57,806 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-10-21 19:54:57,806 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:54:57,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 39 transitions. [2021-10-21 19:54:57,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-21 19:54:57,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:54:57,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:54:57,808 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:57,808 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 19:54:57,809 INFO L791 eck$LassoCheckResult]: Stem: 551#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 528#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 529#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 542#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 552#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 556#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 546#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 544#L509-5 strlen_#res := strlen_~i~0; 545#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 548#L508-2 assume strlen_~s.base == 0 && strlen_~s.offset == 0;strlen_#res := 0; 527#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 553#L529 assume !(0 == strstr_~nl~0 % 4294967296); 536#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 537#L531-3 [2021-10-21 19:54:57,809 INFO L793 eck$LassoCheckResult]: Loop: 537#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 550#L532 assume !strstr_#t~short17; 539#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 538#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 537#L531-3 [2021-10-21 19:54:57,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:57,810 INFO L82 PathProgramCache]: Analyzing trace with hash 51953446, now seen corresponding path program 1 times [2021-10-21 19:54:57,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:57,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409599850] [2021-10-21 19:54:57,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:57,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:54:57,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:54:57,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:54:57,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409599850] [2021-10-21 19:54:57,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409599850] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:54:57,860 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:54:57,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:54:57,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459965101] [2021-10-21 19:54:57,861 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:54:57,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:57,862 INFO L82 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 1 times [2021-10-21 19:54:57,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:57,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551517573] [2021-10-21 19:54:57,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:57,862 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:57,870 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:57,878 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:58,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:54:58,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:54:58,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:54:58,027 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:58,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:54:58,114 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-10-21 19:54:58,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:54:58,117 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2021-10-21 19:54:58,118 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-21 19:54:58,119 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 38 transitions. [2021-10-21 19:54:58,119 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-10-21 19:54:58,119 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-10-21 19:54:58,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 38 transitions. [2021-10-21 19:54:58,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:54:58,119 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-21 19:54:58,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 38 transitions. [2021-10-21 19:54:58,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-21 19:54:58,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 30 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) [2021-10-21 19:54:58,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-10-21 19:54:58,123 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-21 19:54:58,123 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-21 19:54:58,123 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 19:54:58,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 38 transitions. [2021-10-21 19:54:58,123 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-21 19:54:58,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:54:58,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:54:58,124 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:58,124 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 19:54:58,125 INFO L791 eck$LassoCheckResult]: Stem: 623#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 600#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 601#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 615#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 624#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 628#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 618#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 616#L509-5 strlen_#res := strlen_~i~0; 617#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 620#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 621#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 602#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 598#L509-11 strlen_#res := strlen_~i~0; 599#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 625#L529 assume !(0 == strstr_~nl~0 % 4294967296); 608#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 609#L531-3 [2021-10-21 19:54:58,125 INFO L793 eck$LassoCheckResult]: Loop: 609#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 622#L532 assume !strstr_#t~short17; 611#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 610#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 609#L531-3 [2021-10-21 19:54:58,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:58,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1349410205, now seen corresponding path program 1 times [2021-10-21 19:54:58,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:58,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652743028] [2021-10-21 19:54:58,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:58,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:54:58,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:54:58,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:54:58,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652743028] [2021-10-21 19:54:58,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652743028] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:54:58,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:54:58,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:54:58,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787617760] [2021-10-21 19:54:58,204 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:54:58,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:58,205 INFO L82 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 2 times [2021-10-21 19:54:58,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:58,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427923424] [2021-10-21 19:54:58,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:58,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:58,213 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:58,220 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:58,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-21 19:54:58,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:54:58,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:54:58,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:54:58,380 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:58,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:54:58,452 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2021-10-21 19:54:58,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:54:58,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 74 transitions. [2021-10-21 19:54:58,455 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-21 19:54:58,457 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 47 states and 56 transitions. [2021-10-21 19:54:58,460 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2021-10-21 19:54:58,461 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2021-10-21 19:54:58,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 56 transitions. [2021-10-21 19:54:58,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:54:58,461 INFO L681 BuchiCegarLoop]: Abstraction has 47 states and 56 transitions. [2021-10-21 19:54:58,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 56 transitions. [2021-10-21 19:54:58,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 31. [2021-10-21 19:54:58,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 30 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:58,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2021-10-21 19:54:58,466 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-10-21 19:54:58,467 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-10-21 19:54:58,467 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 19:54:58,467 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2021-10-21 19:54:58,468 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-21 19:54:58,468 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:54:58,468 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:54:58,470 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:54:58,470 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 19:54:58,471 INFO L791 eck$LassoCheckResult]: Stem: 732#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 709#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 710#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 724#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 733#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 737#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 728#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 721#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 722#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 727#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 725#L509-5 strlen_#res := strlen_~i~0; 726#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 729#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 730#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 714#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 707#L509-11 strlen_#res := strlen_~i~0; 708#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 734#L529 assume !(0 == strstr_~nl~0 % 4294967296); 717#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 718#L531-3 [2021-10-21 19:54:58,471 INFO L793 eck$LassoCheckResult]: Loop: 718#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 731#L532 assume !strstr_#t~short17; 719#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 720#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 718#L531-3 [2021-10-21 19:54:58,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:58,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1796108770, now seen corresponding path program 1 times [2021-10-21 19:54:58,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:58,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894784023] [2021-10-21 19:54:58,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:58,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:54:58,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:54:58,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:54:58,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894784023] [2021-10-21 19:54:58,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894784023] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:54:58,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694317731] [2021-10-21 19:54:58,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:58,750 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:54:58,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:54:58,751 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:54:58,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-10-21 19:54:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:54:58,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:54:58,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:54:58,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:54:58,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694317731] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:54:58,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:54:58,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-10-21 19:54:58,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207387684] [2021-10-21 19:54:58,983 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:54:58,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:58,983 INFO L82 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 3 times [2021-10-21 19:54:58,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:58,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710369689] [2021-10-21 19:54:58,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:58,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:58,995 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:59,006 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:59,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:54:59,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:54:59,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:54:59,146 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. cyclomatic complexity: 9 Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:59,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:54:59,192 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2021-10-21 19:54:59,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:54:59,207 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 43 transitions. [2021-10-21 19:54:59,208 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-21 19:54:59,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 33 states and 38 transitions. [2021-10-21 19:54:59,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-10-21 19:54:59,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-10-21 19:54:59,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 38 transitions. [2021-10-21 19:54:59,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:54:59,210 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 38 transitions. [2021-10-21 19:54:59,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 38 transitions. [2021-10-21 19:54:59,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-10-21 19:54:59,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 30 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:54:59,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2021-10-21 19:54:59,214 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-10-21 19:54:59,214 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-10-21 19:54:59,214 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-21 19:54:59,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 36 transitions. [2021-10-21 19:54:59,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-21 19:54:59,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:54:59,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:54:59,216 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] [2021-10-21 19:54:59,216 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 19:54:59,216 INFO L791 eck$LassoCheckResult]: Stem: 877#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 854#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 855#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 868#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 878#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 882#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 873#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 866#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 867#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 872#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 870#L509-5 strlen_#res := strlen_~i~0; 871#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 874#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 875#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 857#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 858#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 869#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 856#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 852#L509-11 strlen_#res := strlen_~i~0; 853#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 879#L529 assume !(0 == strstr_~nl~0 % 4294967296); 862#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 863#L531-3 [2021-10-21 19:54:59,217 INFO L793 eck$LassoCheckResult]: Loop: 863#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 876#L532 assume !strstr_#t~short17; 865#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 864#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 863#L531-3 [2021-10-21 19:54:59,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:59,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1624521053, now seen corresponding path program 1 times [2021-10-21 19:54:59,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:59,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874385881] [2021-10-21 19:54:59,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:59,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:59,245 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:59,274 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:59,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:59,275 INFO L82 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 4 times [2021-10-21 19:54:59,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:59,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912639461] [2021-10-21 19:54:59,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:59,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:59,282 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:59,288 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:54:59,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:54:59,289 INFO L82 PathProgramCache]: Analyzing trace with hash 16049535, now seen corresponding path program 1 times [2021-10-21 19:54:59,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:54:59,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849555130] [2021-10-21 19:54:59,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:54:59,290 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:54:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:59,317 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:54:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:54:59,350 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:01,141 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:55:01,141 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:55:01,141 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:55:01,141 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:55:01,141 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:55:01,141 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:01,142 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:55:01,142 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:55:01,142 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration7_Lasso [2021-10-21 19:55:01,142 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:55:01,142 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:55:01,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:01,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:02,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:02,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:02,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:02,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:02,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:02,679 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:55:02,680 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:55:02,680 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:02,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:02,683 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:02,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-21 19:55:02,684 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:02,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:02,693 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:02,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:02,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:02,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:02,694 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:02,694 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:02,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:02,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-21 19:55:02,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:02,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:02,720 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:02,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-21 19:55:02,722 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:02,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:02,733 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:02,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:02,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:02,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:02,734 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:02,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:02,737 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:02,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-21 19:55:02,761 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:02,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:02,762 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:02,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-21 19:55:02,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:02,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:02,774 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:02,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:02,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:02,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:02,775 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:02,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:02,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:02,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-10-21 19:55:02,800 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:02,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:02,801 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:02,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-21 19:55:02,802 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:02,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:02,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:02,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:02,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:02,812 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:02,812 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:02,815 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:02,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-10-21 19:55:02,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:02,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:02,840 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:02,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-21 19:55:02,842 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:02,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:02,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:02,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:02,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:02,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:02,851 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:02,852 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:02,853 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:02,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:02,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:02,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:02,878 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:02,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-21 19:55:02,880 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 [2021-10-21 19:55:02,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:02,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:02,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:02,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:02,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:02,889 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:02,889 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:02,890 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:02,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-21 19:55:02,915 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:02,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:02,917 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:02,920 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:02,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:02,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:02,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:02,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:02,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:02,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:02,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:02,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-21 19:55:02,941 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:02,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:02,984 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:02,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:02,986 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:02,988 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:02,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:02,999 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:02,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:02,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:02,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:03,000 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:03,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:03,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-21 19:55:03,015 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:03,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:03,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:03,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:03,057 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:03,059 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 [2021-10-21 19:55:03,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:03,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:03,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:03,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:03,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:03,071 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:03,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:03,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-21 19:55:03,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:03,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:03,134 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:03,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:03,136 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:03,142 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:03,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:03,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:03,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:03,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:03,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:03,155 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:03,155 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:03,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-21 19:55:03,165 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:03,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:03,206 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:03,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:03,207 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:03,211 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:03,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-21 19:55:03,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:03,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:03,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:03,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:03,227 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:03,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:03,240 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:03,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-10-21 19:55:03,263 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:03,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:03,264 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:03,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-21 19:55:03,266 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:03,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:03,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:03,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:03,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:03,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:03,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:03,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:03,276 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:03,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:03,300 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:03,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:03,301 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:03,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-21 19:55:03,303 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:03,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:03,312 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-10-21 19:55:03,312 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 19:55:03,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:03,321 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2021-10-21 19:55:03,321 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-21 19:55:03,365 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:03,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:03,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:03,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:03,407 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:03,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:03,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:03,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:03,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:03,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:03,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-21 19:55:03,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:03,443 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:03,476 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:55:03,513 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-10-21 19:55:03,513 INFO L444 ModelExtractionUtils]: 49 out of 55 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-10-21 19:55:03,514 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:03,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:03,516 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:03,517 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:55:03,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-21 19:55:03,542 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:55:03,542 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:55:03,543 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strstr_~haystack.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc20.base)_3) = -1*ULTIMATE.start_strstr_~haystack.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc20.base)_3 Supporting invariants [] [2021-10-21 19:55:03,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:03,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:03,775 INFO L297 tatePredicateManager]: 35 out of 36 supporting invariants were superfluous and have been removed [2021-10-21 19:55:03,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:03,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:55:03,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:55:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:04,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:55:04,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:55:04,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:55:04,137 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 [2021-10-21 19:55:04,138 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 8 Second operand has 6 states, 6 states have (on average 4.0) 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) [2021-10-21 19:55:04,205 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 8. Second operand has 6 states, 6 states have (on average 4.0) 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) Result 41 states and 51 transitions. Complement of second has 8 states. [2021-10-21 19:55:04,208 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 [2021-10-21 19:55:04,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 4.0) 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) [2021-10-21 19:55:04,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2021-10-21 19:55:04,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 22 letters. Loop has 4 letters. [2021-10-21 19:55:04,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:55:04,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 26 letters. Loop has 4 letters. [2021-10-21 19:55:04,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:55:04,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 22 letters. Loop has 8 letters. [2021-10-21 19:55:04,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:55:04,211 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 51 transitions. [2021-10-21 19:55:04,212 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:55:04,213 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 45 transitions. [2021-10-21 19:55:04,213 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-10-21 19:55:04,213 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2021-10-21 19:55:04,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 45 transitions. [2021-10-21 19:55:04,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:55:04,214 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 45 transitions. [2021-10-21 19:55:04,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 45 transitions. [2021-10-21 19:55:04,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2021-10-21 19:55:04,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 36 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) [2021-10-21 19:55:04,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2021-10-21 19:55:04,217 INFO L704 BuchiCegarLoop]: Abstraction has 37 states and 44 transitions. [2021-10-21 19:55:04,218 INFO L587 BuchiCegarLoop]: Abstraction has 37 states and 44 transitions. [2021-10-21 19:55:04,218 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-21 19:55:04,218 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 44 transitions. [2021-10-21 19:55:04,218 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:55:04,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:55:04,219 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:55:04,220 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] [2021-10-21 19:55:04,220 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:55:04,220 INFO L791 eck$LassoCheckResult]: Stem: 1211#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1183#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 1184#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 1201#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 1212#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1217#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1206#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 1199#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 1200#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1205#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1203#L509-5 strlen_#res := strlen_~i~0; 1204#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 1207#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1208#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1191#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 1192#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 1202#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1190#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1181#L509-11 strlen_#res := strlen_~i~0; 1182#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 1213#L529 assume !(0 == strstr_~nl~0 % 4294967296); 1193#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 1194#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 1209#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 1186#L517-3 [2021-10-21 19:55:04,221 INFO L793 eck$LassoCheckResult]: Loop: 1186#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 1214#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 1185#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 1186#L517-3 [2021-10-21 19:55:04,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:04,221 INFO L82 PathProgramCache]: Analyzing trace with hash -2091601114, now seen corresponding path program 1 times [2021-10-21 19:55:04,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:04,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766070820] [2021-10-21 19:55:04,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:04,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:04,246 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:04,276 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:04,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:04,277 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 1 times [2021-10-21 19:55:04,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:04,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919370570] [2021-10-21 19:55:04,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:04,278 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:04,286 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:04,293 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:04,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:04,294 INFO L82 PathProgramCache]: Analyzing trace with hash 496824785, now seen corresponding path program 1 times [2021-10-21 19:55:04,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:04,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864009433] [2021-10-21 19:55:04,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:04,295 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:04,323 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:04,362 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:06,907 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:55:06,907 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:55:06,907 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:55:06,908 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:55:06,908 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:55:06,908 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:06,908 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:55:06,908 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:55:06,908 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration8_Lasso [2021-10-21 19:55:06,908 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:55:06,908 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:55:06,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:06,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:08,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:08,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:08,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:09,496 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:55:09,496 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:55:09,497 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:09,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:09,507 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:09,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-21 19:55:09,509 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:09,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:09,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:09,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:09,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:09,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:09,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:09,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:09,520 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:09,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:09,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:09,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:09,558 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:09,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-21 19:55:09,563 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:09,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:09,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:09,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:09,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:09,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:09,573 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:09,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:09,581 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:09,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:09,606 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:09,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:09,607 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:09,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-21 19:55:09,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:09,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:09,618 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:09,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:09,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:09,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:09,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:09,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:09,620 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:09,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-10-21 19:55:09,645 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:09,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:09,646 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:09,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-21 19:55:09,647 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:09,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:09,657 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:09,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:09,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:09,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:09,658 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:09,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:09,660 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:09,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-10-21 19:55:09,685 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:09,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:09,686 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:09,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-21 19:55:09,687 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:09,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:09,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:09,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:09,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:09,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:09,697 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:09,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:09,698 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:09,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-10-21 19:55:09,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:09,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:09,724 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:09,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-21 19:55:09,725 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:09,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:09,734 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:09,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:09,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:09,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:09,734 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:09,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:09,759 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:09,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:09,784 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:09,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:09,785 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:09,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-21 19:55:09,787 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:09,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:09,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:09,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:09,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:09,797 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:09,797 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:09,800 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:09,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2021-10-21 19:55:09,824 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:09,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:09,825 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:09,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-21 19:55:09,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:09,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:09,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:09,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:09,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:09,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:09,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:09,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:09,836 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:09,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-10-21 19:55:09,860 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:09,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:09,861 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:09,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-21 19:55:09,863 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:09,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:09,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:09,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:09,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:09,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:09,872 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:09,872 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:09,873 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:09,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-10-21 19:55:09,897 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:09,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:09,898 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:09,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-21 19:55:09,902 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:09,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:09,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:09,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:09,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:09,912 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:09,912 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:09,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:09,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2021-10-21 19:55:09,939 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:09,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:09,939 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:09,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-21 19:55:09,941 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:09,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:09,950 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:09,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:09,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:09,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:09,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:09,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:09,951 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:09,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:09,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:09,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:09,977 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:09,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-21 19:55:09,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:09,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:09,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:09,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:09,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:09,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:09,987 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:09,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:09,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2021-10-21 19:55:10,013 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,013 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-21 19:55:10,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,024 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:10,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,025 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:10,025 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:10,026 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2021-10-21 19:55:10,050 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,051 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-21 19:55:10,053 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,063 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:10,063 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:10,066 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:10,090 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,091 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-21 19:55:10,094 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:10,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:10,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:10,104 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2021-10-21 19:55:10,128 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,129 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-21 19:55:10,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:10,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:10,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:10,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2021-10-21 19:55:10,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,166 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-21 19:55:10,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,182 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:10,182 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:10,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-10-21 19:55:10,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,221 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-10-21 19:55:10,222 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 [2021-10-21 19:55:10,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,231 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:10,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,231 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:10,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:10,233 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2021-10-21 19:55:10,257 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,258 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-10-21 19:55:10,260 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,269 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:10,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:10,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:10,271 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2021-10-21 19:55:10,295 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,296 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-21 19:55:10,298 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 [2021-10-21 19:55:10,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:10,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:10,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:10,309 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2021-10-21 19:55:10,333 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,334 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-21 19:55:10,336 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:10,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,345 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:10,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:10,346 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:10,371 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,371 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-21 19:55:10,373 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:10,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:10,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:10,383 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Ended with exit code 0 [2021-10-21 19:55:10,408 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,409 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-21 19:55:10,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:10,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,419 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:10,419 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:10,420 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:10,446 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,447 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-21 19:55:10,448 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,457 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:10,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,458 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:10,458 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:10,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:10,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,485 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-21 19:55:10,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:10,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:10,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:10,526 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Ended with exit code 0 [2021-10-21 19:55:10,551 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,552 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-21 19:55:10,553 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 [2021-10-21 19:55:10,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:10,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,562 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:10,563 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:10,564 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Ended with exit code 0 [2021-10-21 19:55:10,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,589 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-21 19:55:10,591 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,599 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:10,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:10,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:10,602 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Ended with exit code 0 [2021-10-21 19:55:10,626 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,627 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-21 19:55:10,629 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:10,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,639 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:10,639 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:10,640 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:10,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,666 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-10-21 19:55:10,672 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,683 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:10,683 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:10,686 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Ended with exit code 0 [2021-10-21 19:55:10,710 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,711 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-10-21 19:55:10,713 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,726 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:10,726 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:10,729 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:10,753 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,754 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2021-10-21 19:55:10,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,764 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-21 19:55:10,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,771 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-21 19:55:10,771 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:10,782 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Ended with exit code 0 [2021-10-21 19:55:10,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,808 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-10-21 19:55:10,809 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,819 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:10,820 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:10,822 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:10,847 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,847 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2021-10-21 19:55:10,849 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 [2021-10-21 19:55:10,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,861 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:10,861 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:10,866 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:10,891 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,891 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-10-21 19:55:10,893 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,915 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:10,916 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:10,934 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Ended with exit code 0 [2021-10-21 19:55:10,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:10,959 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:10,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-10-21 19:55:10,961 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:10,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:10,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:10,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:10,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:10,971 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:10,971 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:10,975 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:10,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:10,999 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:10,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:11,000 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:11,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-10-21 19:55:11,001 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:11,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:11,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:11,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:11,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:11,011 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:11,011 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:11,014 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:11,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Ended with exit code 0 [2021-10-21 19:55:11,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:11,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:11,039 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:11,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-10-21 19:55:11,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:11,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:11,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:11,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:11,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:11,073 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:11,074 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:11,101 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:55:11,231 INFO L443 ModelExtractionUtils]: Simplification made 35 calls to the SMT solver. [2021-10-21 19:55:11,232 INFO L444 ModelExtractionUtils]: 34 out of 70 variables were initially zero. Simplification set additionally 33 variables to zero. [2021-10-21 19:55:11,232 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:11,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:11,233 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:11,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-10-21 19:55:11,234 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:55:11,246 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:55:11,247 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:55:11,247 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc22.base)_4, ULTIMATE.start_memcmp_~d~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc22.base)_4 - 1*ULTIMATE.start_memcmp_~d~0.offset Supporting invariants [] [2021-10-21 19:55:11,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:11,509 INFO L297 tatePredicateManager]: 47 out of 51 supporting invariants were superfluous and have been removed [2021-10-21 19:55:11,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:11,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-21 19:55:11,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:55:12,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:12,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-21 19:55:12,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:55:12,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:55:12,434 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 2 loop predicates [2021-10-21 19:55:12,434 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 44 transitions. cyclomatic complexity: 11 Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:12,680 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 44 transitions. cyclomatic complexity: 11. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 92 states and 111 transitions. Complement of second has 13 states. [2021-10-21 19:55:12,681 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 [2021-10-21 19:55:12,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:12,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 48 transitions. [2021-10-21 19:55:12,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 48 transitions. Stem has 24 letters. Loop has 3 letters. [2021-10-21 19:55:12,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:55:12,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 48 transitions. Stem has 27 letters. Loop has 3 letters. [2021-10-21 19:55:12,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:55:12,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 48 transitions. Stem has 24 letters. Loop has 6 letters. [2021-10-21 19:55:12,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:55:12,683 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 111 transitions. [2021-10-21 19:55:12,685 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:55:12,687 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 70 states and 85 transitions. [2021-10-21 19:55:12,688 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-21 19:55:12,688 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-10-21 19:55:12,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 85 transitions. [2021-10-21 19:55:12,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:55:12,688 INFO L681 BuchiCegarLoop]: Abstraction has 70 states and 85 transitions. [2021-10-21 19:55:12,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states and 85 transitions. [2021-10-21 19:55:12,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 43. [2021-10-21 19:55:12,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 42 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:12,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2021-10-21 19:55:12,693 INFO L704 BuchiCegarLoop]: Abstraction has 43 states and 52 transitions. [2021-10-21 19:55:12,693 INFO L587 BuchiCegarLoop]: Abstraction has 43 states and 52 transitions. [2021-10-21 19:55:12,693 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-21 19:55:12,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 52 transitions. [2021-10-21 19:55:12,694 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:55:12,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:55:12,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:55:12,695 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [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] [2021-10-21 19:55:12,695 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:55:12,695 INFO L791 eck$LassoCheckResult]: Stem: 1676#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1649#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 1650#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 1667#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 1677#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1683#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1671#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 1664#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 1665#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1670#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1668#L509-5 strlen_#res := strlen_~i~0; 1669#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 1672#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1673#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1652#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 1653#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 1666#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1651#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1647#L509-11 strlen_#res := strlen_~i~0; 1648#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 1678#L529 assume !(0 == strstr_~nl~0 % 4294967296); 1658#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 1659#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 1689#L532 assume !strstr_#t~short17; 1663#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 1660#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 1662#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 1674#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 1655#L517-3 [2021-10-21 19:55:12,696 INFO L793 eck$LassoCheckResult]: Loop: 1655#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 1679#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 1654#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 1655#L517-3 [2021-10-21 19:55:12,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:12,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1756263678, now seen corresponding path program 1 times [2021-10-21 19:55:12,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:12,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270538908] [2021-10-21 19:55:12,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:12,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:12,962 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:55:12,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:55:12,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270538908] [2021-10-21 19:55:12,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270538908] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:55:12,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542211527] [2021-10-21 19:55:12,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:12,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:55:12,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:12,966 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:55:12,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2021-10-21 19:55:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:13,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 57 conjunts are in the unsatisfiable core [2021-10-21 19:55:13,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:55:13,237 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 14 treesize of output 10 [2021-10-21 19:55:14,316 INFO L354 Elim1Store]: treesize reduction 21, result has 46.2 percent of original size [2021-10-21 19:55:14,317 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 61 treesize of output 47 [2021-10-21 19:55:14,353 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:55:14,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542211527] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:55:14,353 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:55:14,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-10-21 19:55:14,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305738924] [2021-10-21 19:55:14,354 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:55:14,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:14,355 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 2 times [2021-10-21 19:55:14,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:14,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318900037] [2021-10-21 19:55:14,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:14,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:14,364 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:14,372 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:14,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:55:14,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-21 19:55:14,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2021-10-21 19:55:14,537 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. cyclomatic complexity: 14 Second operand has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 23 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:17,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:55:17,257 INFO L93 Difference]: Finished difference Result 157 states and 186 transitions. [2021-10-21 19:55:17,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-21 19:55:17,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 186 transitions. [2021-10-21 19:55:17,260 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-21 19:55:17,262 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 136 states and 162 transitions. [2021-10-21 19:55:17,262 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2021-10-21 19:55:17,262 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2021-10-21 19:55:17,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 136 states and 162 transitions. [2021-10-21 19:55:17,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:55:17,263 INFO L681 BuchiCegarLoop]: Abstraction has 136 states and 162 transitions. [2021-10-21 19:55:17,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states and 162 transitions. [2021-10-21 19:55:17,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 75. [2021-10-21 19:55:17,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 75 states have (on average 1.1866666666666668) internal successors, (89), 74 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:17,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 89 transitions. [2021-10-21 19:55:17,271 INFO L704 BuchiCegarLoop]: Abstraction has 75 states and 89 transitions. [2021-10-21 19:55:17,271 INFO L587 BuchiCegarLoop]: Abstraction has 75 states and 89 transitions. [2021-10-21 19:55:17,271 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-21 19:55:17,271 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states and 89 transitions. [2021-10-21 19:55:17,272 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:55:17,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:55:17,273 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:55:17,274 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:55:17,274 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:55:17,274 INFO L791 eck$LassoCheckResult]: Stem: 2070#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2038#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 2039#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 2055#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2072#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2080#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2061#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2062#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2081#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2082#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2057#L509-5 strlen_#res := strlen_~i~0; 2058#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2065#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2066#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2089#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2088#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2086#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2041#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2042#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2056#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2040#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2036#L509-11 strlen_#res := strlen_~i~0; 2037#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 2073#L529 assume !(0 == strstr_~nl~0 % 4294967296); 2047#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 2048#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2067#L532 assume !strstr_#t~short17; 2052#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 2091#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 2090#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2078#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 2044#L517-3 [2021-10-21 19:55:17,275 INFO L793 eck$LassoCheckResult]: Loop: 2044#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2074#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 2043#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 2044#L517-3 [2021-10-21 19:55:17,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:17,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1765677085, now seen corresponding path program 2 times [2021-10-21 19:55:17,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:17,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907136362] [2021-10-21 19:55:17,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:17,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:17,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:17,308 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:17,343 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:17,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:17,344 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 3 times [2021-10-21 19:55:17,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:17,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751775004] [2021-10-21 19:55:17,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:17,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:17,353 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:17,359 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:17,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:17,360 INFO L82 PathProgramCache]: Analyzing trace with hash 821646714, now seen corresponding path program 1 times [2021-10-21 19:55:17,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:17,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485535691] [2021-10-21 19:55:17,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:17,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:17,396 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:17,439 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:20,503 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:55:20,503 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:55:20,503 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:55:20,503 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:55:20,503 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:55:20,503 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:20,503 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:55:20,504 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:55:20,504 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration10_Lasso [2021-10-21 19:55:20,504 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:55:20,504 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:55:20,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:20,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:20,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:20,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:20,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:20,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:20,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:20,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:20,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:22,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:55:23,638 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:55:23,638 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:55:23,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:23,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:23,650 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:23,652 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:23,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:23,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:23,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:23,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:23,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:23,664 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:23,664 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:23,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2021-10-21 19:55:23,669 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:23,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:23,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:23,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:23,694 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:23,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-10-21 19:55:23,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:23,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:23,705 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:23,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:23,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:23,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:23,705 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:23,706 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:23,707 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:23,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:23,731 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:23,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:23,731 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:23,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-10-21 19:55:23,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:23,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:23,742 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:23,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:23,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:23,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:23,743 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:23,743 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:23,753 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:23,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:23,777 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:23,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:23,778 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:23,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-10-21 19:55:23,780 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:23,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:23,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:23,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:23,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:23,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:23,789 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:23,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:23,790 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:23,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Ended with exit code 0 [2021-10-21 19:55:23,814 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:23,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:23,815 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:23,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2021-10-21 19:55:23,816 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:23,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:23,825 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:23,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:23,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:23,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:23,826 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:23,826 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:23,827 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:23,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:23,851 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:23,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:23,852 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:23,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2021-10-21 19:55:23,854 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:23,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:23,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:23,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:23,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:23,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:23,863 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:23,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:23,864 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:23,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:23,888 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:23,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:23,889 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:23,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2021-10-21 19:55:23,901 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:23,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:23,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:23,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:23,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:23,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:23,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:23,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:23,912 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:23,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Ended with exit code 0 [2021-10-21 19:55:23,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:23,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:23,936 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:23,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2021-10-21 19:55:23,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:23,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:23,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:55:23,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:23,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:23,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:23,947 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:55:23,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:55:23,948 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:23,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Ended with exit code 0 [2021-10-21 19:55:23,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:23,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:23,973 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:23,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2021-10-21 19:55:23,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:23,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:23,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:23,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:23,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:23,985 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:23,985 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:23,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:24,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:24,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:24,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:24,013 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:24,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2021-10-21 19:55:24,014 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:24,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:24,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:24,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:24,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:24,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:24,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:24,027 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:24,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:24,051 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:24,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:24,052 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:24,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2021-10-21 19:55:24,053 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:24,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:24,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:24,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:24,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:24,074 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:24,074 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:24,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:55:24,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Ended with exit code 0 [2021-10-21 19:55:24,116 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:24,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:24,117 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:24,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2021-10-21 19:55:24,118 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:55:24,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:55:24,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:55:24,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:55:24,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:55:24,146 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:55:24,147 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:55:24,193 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:55:24,313 INFO L443 ModelExtractionUtils]: Simplification made 26 calls to the SMT solver. [2021-10-21 19:55:24,314 INFO L444 ModelExtractionUtils]: 41 out of 76 variables were initially zero. Simplification set additionally 32 variables to zero. [2021-10-21 19:55:24,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:55:24,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:24,319 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:55:24,322 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:55:24,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Waiting until timeout for monitored process [2021-10-21 19:55:24,346 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:55:24,346 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:55:24,346 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_memcmp_~d~0.offset, v_rep(select #length ULTIMATE.start_main_~hay~0.base)_1) = -1*ULTIMATE.start_memcmp_~d~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~hay~0.base)_1 Supporting invariants [] [2021-10-21 19:55:24,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:24,773 INFO L297 tatePredicateManager]: 58 out of 60 supporting invariants were superfluous and have been removed [2021-10-21 19:55:24,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:24,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-21 19:55:24,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:55:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:25,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 19:55:25,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:55:25,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:55:25,166 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 [2021-10-21 19:55:25,166 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 75 states and 89 transitions. cyclomatic complexity: 20 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:25,246 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 75 states and 89 transitions. cyclomatic complexity: 20. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 150 states and 179 transitions. Complement of second has 8 states. [2021-10-21 19:55:25,248 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 [2021-10-21 19:55:25,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:25,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2021-10-21 19:55:25,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 41 transitions. Stem has 31 letters. Loop has 3 letters. [2021-10-21 19:55:25,251 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:55:25,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 41 transitions. Stem has 34 letters. Loop has 3 letters. [2021-10-21 19:55:25,251 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:55:25,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 41 transitions. Stem has 31 letters. Loop has 6 letters. [2021-10-21 19:55:25,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:55:25,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 150 states and 179 transitions. [2021-10-21 19:55:25,254 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:55:25,256 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 150 states to 108 states and 129 transitions. [2021-10-21 19:55:25,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-10-21 19:55:25,256 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2021-10-21 19:55:25,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 129 transitions. [2021-10-21 19:55:25,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:55:25,256 INFO L681 BuchiCegarLoop]: Abstraction has 108 states and 129 transitions. [2021-10-21 19:55:25,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 129 transitions. [2021-10-21 19:55:25,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 82. [2021-10-21 19:55:25,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 1.170731707317073) internal successors, (96), 81 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) [2021-10-21 19:55:25,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 96 transitions. [2021-10-21 19:55:25,277 INFO L704 BuchiCegarLoop]: Abstraction has 82 states and 96 transitions. [2021-10-21 19:55:25,278 INFO L587 BuchiCegarLoop]: Abstraction has 82 states and 96 transitions. [2021-10-21 19:55:25,278 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-21 19:55:25,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 96 transitions. [2021-10-21 19:55:25,279 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:55:25,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:55:25,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:55:25,282 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] [2021-10-21 19:55:25,285 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:55:25,285 INFO L791 eck$LassoCheckResult]: Stem: 2667#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2637#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 2638#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 2654#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2669#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2677#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2660#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2652#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2653#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2659#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2657#L509-5 strlen_#res := strlen_~i~0; 2658#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2661#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2662#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2691#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2655#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2656#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2645#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2646#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2686#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2687#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2635#L509-11 strlen_#res := strlen_~i~0; 2636#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 2670#L529 assume !(0 == strstr_~nl~0 % 4294967296); 2671#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 2663#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2664#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 2682#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2683#L517-1 assume !(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6; 2699#L517-4 memcmp_#res := 0; 2702#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 2701#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 2698#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 2690#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2675#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 2640#L517-3 [2021-10-21 19:55:25,286 INFO L793 eck$LassoCheckResult]: Loop: 2640#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2672#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 2639#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 2640#L517-3 [2021-10-21 19:55:25,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:25,286 INFO L82 PathProgramCache]: Analyzing trace with hash 191871499, now seen corresponding path program 1 times [2021-10-21 19:55:25,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:25,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025094076] [2021-10-21 19:55:25,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:25,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:25,344 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-21 19:55:25,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:55:25,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025094076] [2021-10-21 19:55:25,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025094076] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:55:25,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:55:25,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:55:25,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741487582] [2021-10-21 19:55:25,346 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:55:25,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:25,346 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 4 times [2021-10-21 19:55:25,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:25,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376700296] [2021-10-21 19:55:25,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:25,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:25,356 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:25,363 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:25,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:55:25,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:55:25,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:55:25,523 INFO L87 Difference]: Start difference. First operand 82 states and 96 transitions. cyclomatic complexity: 21 Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:25,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:55:25,545 INFO L93 Difference]: Finished difference Result 86 states and 98 transitions. [2021-10-21 19:55:25,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:55:25,545 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 98 transitions. [2021-10-21 19:55:25,546 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:55:25,547 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 80 states and 91 transitions. [2021-10-21 19:55:25,547 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-10-21 19:55:25,547 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2021-10-21 19:55:25,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 91 transitions. [2021-10-21 19:55:25,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:55:25,548 INFO L681 BuchiCegarLoop]: Abstraction has 80 states and 91 transitions. [2021-10-21 19:55:25,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 91 transitions. [2021-10-21 19:55:25,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-10-21 19:55:25,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.1375) internal successors, (91), 79 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:25,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2021-10-21 19:55:25,552 INFO L704 BuchiCegarLoop]: Abstraction has 80 states and 91 transitions. [2021-10-21 19:55:25,552 INFO L587 BuchiCegarLoop]: Abstraction has 80 states and 91 transitions. [2021-10-21 19:55:25,552 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-21 19:55:25,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 91 transitions. [2021-10-21 19:55:25,553 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:55:25,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:55:25,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:55:25,559 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] [2021-10-21 19:55:25,561 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:55:25,562 INFO L791 eck$LassoCheckResult]: Stem: 2843#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2814#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 2815#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 2831#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2844#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2851#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2852#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2889#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2888#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2887#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2886#L509-5 strlen_#res := strlen_~i~0; 2837#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2838#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2839#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2817#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2818#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2832#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2853#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2891#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2890#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2816#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2812#L509-11 strlen_#res := strlen_~i~0; 2813#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 2845#L529 assume !(0 == strstr_~nl~0 % 4294967296); 2823#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 2824#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2840#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 2822#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2875#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 2861#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 2859#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 2858#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 2857#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 2856#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2848#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 2820#L517-3 [2021-10-21 19:55:25,563 INFO L793 eck$LassoCheckResult]: Loop: 2820#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2846#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 2819#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 2820#L517-3 [2021-10-21 19:55:25,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:25,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1795103955, now seen corresponding path program 1 times [2021-10-21 19:55:25,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:25,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256199634] [2021-10-21 19:55:25,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:25,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:25,711 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-21 19:55:25,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:55:25,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256199634] [2021-10-21 19:55:25,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256199634] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:55:25,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:55:25,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:55:25,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950970993] [2021-10-21 19:55:25,713 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:55:25,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:25,713 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 5 times [2021-10-21 19:55:25,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:25,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536264803] [2021-10-21 19:55:25,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:25,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:25,722 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:25,728 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:25,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Forceful destruction successful, exit code 0 [2021-10-21 19:55:25,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:55:25,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:55:25,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:55:25,944 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. cyclomatic complexity: 18 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:26,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:55:26,013 INFO L93 Difference]: Finished difference Result 97 states and 108 transitions. [2021-10-21 19:55:26,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:55:26,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 97 states and 108 transitions. [2021-10-21 19:55:26,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:55:26,016 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 97 states to 93 states and 104 transitions. [2021-10-21 19:55:26,016 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-21 19:55:26,016 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-21 19:55:26,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 104 transitions. [2021-10-21 19:55:26,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:55:26,016 INFO L681 BuchiCegarLoop]: Abstraction has 93 states and 104 transitions. [2021-10-21 19:55:26,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 104 transitions. [2021-10-21 19:55:26,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 85. [2021-10-21 19:55:26,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 85 states have (on average 1.1294117647058823) internal successors, (96), 84 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) [2021-10-21 19:55:26,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 96 transitions. [2021-10-21 19:55:26,021 INFO L704 BuchiCegarLoop]: Abstraction has 85 states and 96 transitions. [2021-10-21 19:55:26,021 INFO L587 BuchiCegarLoop]: Abstraction has 85 states and 96 transitions. [2021-10-21 19:55:26,021 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-21 19:55:26,030 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 96 transitions. [2021-10-21 19:55:26,031 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:55:26,031 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:55:26,031 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:55:26,032 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] [2021-10-21 19:55:26,032 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:55:26,033 INFO L791 eck$LassoCheckResult]: Stem: 3030#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3003#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 3004#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 3020#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3033#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3040#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3025#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3018#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3019#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3024#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3022#L509-5 strlen_#res := strlen_~i~0; 3023#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3026#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3027#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3010#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3011#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3021#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3044#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3074#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3073#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3009#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3001#L509-11 strlen_#res := strlen_~i~0; 3002#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 3060#L529 assume !(0 == strstr_~nl~0 % 4294967296); 3012#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 3013#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3028#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3082#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3080#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3081#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3078#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3079#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3050#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 3049#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 3048#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 3046#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 3045#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3038#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3006#L517-3 [2021-10-21 19:55:26,033 INFO L793 eck$LassoCheckResult]: Loop: 3006#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3036#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3005#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3006#L517-3 [2021-10-21 19:55:26,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:26,033 INFO L82 PathProgramCache]: Analyzing trace with hash -2138077336, now seen corresponding path program 1 times [2021-10-21 19:55:26,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:26,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930845982] [2021-10-21 19:55:26,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:26,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:26,231 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-21 19:55:26,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:55:26,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930845982] [2021-10-21 19:55:26,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930845982] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:55:26,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121589178] [2021-10-21 19:55:26,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:26,232 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:55:26,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:26,233 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:55:26,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Waiting until timeout for monitored process [2021-10-21 19:55:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:26,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-21 19:55:26,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:55:26,838 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-21 19:55:26,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121589178] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:55:26,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:55:26,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-10-21 19:55:26,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841140740] [2021-10-21 19:55:26,841 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:55:26,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:26,842 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 6 times [2021-10-21 19:55:26,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:26,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318530888] [2021-10-21 19:55:26,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:26,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:26,854 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:26,861 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:27,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:55:27,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:55:27,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:55:27,031 INFO L87 Difference]: Start difference. First operand 85 states and 96 transitions. cyclomatic complexity: 18 Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:27,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:55:27,217 INFO L93 Difference]: Finished difference Result 133 states and 150 transitions. [2021-10-21 19:55:27,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 19:55:27,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 133 states and 150 transitions. [2021-10-21 19:55:27,219 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-21 19:55:27,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 133 states to 105 states and 120 transitions. [2021-10-21 19:55:27,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-10-21 19:55:27,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2021-10-21 19:55:27,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 120 transitions. [2021-10-21 19:55:27,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:55:27,221 INFO L681 BuchiCegarLoop]: Abstraction has 105 states and 120 transitions. [2021-10-21 19:55:27,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 120 transitions. [2021-10-21 19:55:27,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 77. [2021-10-21 19:55:27,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 77 states have (on average 1.12987012987013) internal successors, (87), 76 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:27,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2021-10-21 19:55:27,225 INFO L704 BuchiCegarLoop]: Abstraction has 77 states and 87 transitions. [2021-10-21 19:55:27,225 INFO L587 BuchiCegarLoop]: Abstraction has 77 states and 87 transitions. [2021-10-21 19:55:27,225 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-21 19:55:27,226 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 87 transitions. [2021-10-21 19:55:27,226 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:55:27,226 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:55:27,226 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:55:27,227 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] [2021-10-21 19:55:27,227 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:55:27,228 INFO L791 eck$LassoCheckResult]: Stem: 3386#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3357#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 3358#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 3375#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3388#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3395#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3381#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3373#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3374#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3396#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3404#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3403#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3380#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3378#L509-5 strlen_#res := strlen_~i~0; 3379#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3382#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3383#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3400#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3376#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3377#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3365#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3366#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3401#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3402#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3355#L509-11 strlen_#res := strlen_~i~0; 3356#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 3389#L529 assume !(0 == strstr_~nl~0 % 4294967296); 3390#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 3384#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3385#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3399#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3392#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3361#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3362#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3423#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3419#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 3409#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 3408#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 3406#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 3405#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3393#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3360#L517-3 [2021-10-21 19:55:27,228 INFO L793 eck$LassoCheckResult]: Loop: 3360#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3391#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3359#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3360#L517-3 [2021-10-21 19:55:27,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:27,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1050158307, now seen corresponding path program 2 times [2021-10-21 19:55:27,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:27,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697721941] [2021-10-21 19:55:27,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:27,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:27,508 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-21 19:55:27,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:55:27,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697721941] [2021-10-21 19:55:27,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697721941] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:55:27,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379321649] [2021-10-21 19:55:27,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:55:27,509 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:55:27,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:27,514 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:55:27,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Waiting until timeout for monitored process [2021-10-21 19:55:27,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:55:27,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:55:27,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-21 19:55:27,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:55:28,406 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-21 19:55:28,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379321649] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:55:28,407 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:55:28,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 19 [2021-10-21 19:55:28,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660148105] [2021-10-21 19:55:28,410 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:55:28,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:28,411 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 7 times [2021-10-21 19:55:28,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:28,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838696244] [2021-10-21 19:55:28,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:28,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:28,426 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:28,437 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:28,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:55:28,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-21 19:55:28,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-10-21 19:55:28,610 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. cyclomatic complexity: 17 Second operand has 19 states, 19 states have (on average 2.736842105263158) internal successors, (52), 19 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:28,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:55:28,938 INFO L93 Difference]: Finished difference Result 259 states and 296 transitions. [2021-10-21 19:55:28,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-21 19:55:28,939 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 259 states and 296 transitions. [2021-10-21 19:55:28,942 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-10-21 19:55:28,944 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 259 states to 238 states and 274 transitions. [2021-10-21 19:55:28,945 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2021-10-21 19:55:28,945 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2021-10-21 19:55:28,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 238 states and 274 transitions. [2021-10-21 19:55:28,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:55:28,945 INFO L681 BuchiCegarLoop]: Abstraction has 238 states and 274 transitions. [2021-10-21 19:55:28,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states and 274 transitions. [2021-10-21 19:55:28,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 91. [2021-10-21 19:55:28,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 91 states have (on average 1.1318681318681318) internal successors, (103), 90 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:28,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2021-10-21 19:55:28,956 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 103 transitions. [2021-10-21 19:55:28,956 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 103 transitions. [2021-10-21 19:55:28,957 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-21 19:55:28,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 103 transitions. [2021-10-21 19:55:28,957 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:55:28,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:55:28,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:55:28,959 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] [2021-10-21 19:55:28,959 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:55:28,959 INFO L791 eck$LassoCheckResult]: Stem: 3874#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3845#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 3846#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 3864#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3877#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3883#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3884#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3890#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3885#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3868#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3860#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3861#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3867#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3865#L509-5 strlen_#res := strlen_~i~0; 3866#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3869#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3870#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3898#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3897#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3895#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3896#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3920#L509-11 strlen_#res := strlen_~i~0; 3919#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 3918#L529 assume !(0 == strstr_~nl~0 % 4294967296); 3917#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 3916#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3914#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3913#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3911#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3912#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3910#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3909#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3908#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 3858#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 3859#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 3856#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 3857#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3907#L532 assume !strstr_#t~short17; 3905#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 3893#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 3892#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3881#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3851#L517-3 [2021-10-21 19:55:28,960 INFO L793 eck$LassoCheckResult]: Loop: 3851#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3879#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3850#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3851#L517-3 [2021-10-21 19:55:28,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:28,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1867103268, now seen corresponding path program 1 times [2021-10-21 19:55:28,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:28,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107589504] [2021-10-21 19:55:28,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:28,961 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:29,235 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-21 19:55:29,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:55:29,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107589504] [2021-10-21 19:55:29,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107589504] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:55:29,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628002524] [2021-10-21 19:55:29,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:29,236 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:55:29,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:29,239 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:55:29,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Waiting until timeout for monitored process [2021-10-21 19:55:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:29,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-21 19:55:29,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:55:30,026 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-21 19:55:30,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628002524] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:55:30,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:55:30,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 15 [2021-10-21 19:55:30,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156106526] [2021-10-21 19:55:30,027 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:55:30,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:30,028 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 8 times [2021-10-21 19:55:30,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:30,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958494025] [2021-10-21 19:55:30,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:30,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:30,037 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:55:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:55:30,043 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:55:30,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:55:30,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-21 19:55:30,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-10-21 19:55:30,206 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. cyclomatic complexity: 19 Second operand has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 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) [2021-10-21 19:55:30,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:55:30,487 INFO L93 Difference]: Finished difference Result 195 states and 223 transitions. [2021-10-21 19:55:30,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:55:30,488 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 223 transitions. [2021-10-21 19:55:30,489 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-10-21 19:55:30,491 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 190 states and 218 transitions. [2021-10-21 19:55:30,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 60 [2021-10-21 19:55:30,492 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2021-10-21 19:55:30,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 190 states and 218 transitions. [2021-10-21 19:55:30,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:55:30,492 INFO L681 BuchiCegarLoop]: Abstraction has 190 states and 218 transitions. [2021-10-21 19:55:30,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states and 218 transitions. [2021-10-21 19:55:30,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 91. [2021-10-21 19:55:30,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 91 states have (on average 1.120879120879121) internal successors, (102), 90 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:55:30,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 102 transitions. [2021-10-21 19:55:30,497 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 102 transitions. [2021-10-21 19:55:30,497 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 102 transitions. [2021-10-21 19:55:30,497 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-10-21 19:55:30,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 102 transitions. [2021-10-21 19:55:30,498 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:55:30,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:55:30,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:55:30,500 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 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] [2021-10-21 19:55:30,500 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:55:30,500 INFO L791 eck$LassoCheckResult]: Stem: 4310#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 4280#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 4281#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 4298#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 4312#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 4319#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4320#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4330#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4321#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4303#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4304#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4327#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4328#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4295#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4296#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4301#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 4302#L509-5 strlen_#res := strlen_~i~0; 4305#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 4306#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 4322#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4323#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4357#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4356#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4283#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4284#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4297#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4282#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 4278#L509-11 strlen_#res := strlen_~i~0; 4279#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 4313#L529 assume !(0 == strstr_~nl~0 % 4294967296); 4289#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 4290#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 4309#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 4362#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4361#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4287#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 4288#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4315#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4316#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 4340#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 4339#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 4337#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 4331#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 4317#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 4286#L517-3 [2021-10-21 19:55:30,501 INFO L793 eck$LassoCheckResult]: Loop: 4286#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4314#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4285#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 4286#L517-3 [2021-10-21 19:55:30,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:55:30,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1423552120, now seen corresponding path program 3 times [2021-10-21 19:55:30,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:55:30,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569217846] [2021-10-21 19:55:30,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:55:30,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:55:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:55:30,806 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-21 19:55:30,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:55:30,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569217846] [2021-10-21 19:55:30,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569217846] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:55:30,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875141265] [2021-10-21 19:55:30,806 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:55:30,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:55:30,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:55:30,809 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:55:30,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Waiting until timeout for monitored process [2021-10-21 19:55:31,368 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-21 19:55:31,368 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:55:31,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-21 19:55:31,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:56:07,735 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-21 19:56:07,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875141265] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:56:07,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:56:07,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 23 [2021-10-21 19:56:07,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387017257] [2021-10-21 19:56:07,737 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:56:07,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:07,737 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 9 times [2021-10-21 19:56:07,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:07,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335320241] [2021-10-21 19:56:07,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:07,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:07,746 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:56:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:07,752 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:56:07,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:56:07,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-21 19:56:07,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2021-10-21 19:56:07,918 INFO L87 Difference]: Start difference. First operand 91 states and 102 transitions. cyclomatic complexity: 18 Second operand has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 23 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:09,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:56:09,842 INFO L93 Difference]: Finished difference Result 346 states and 397 transitions. [2021-10-21 19:56:09,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-21 19:56:09,843 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 346 states and 397 transitions. [2021-10-21 19:56:09,846 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2021-10-21 19:56:09,849 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 346 states to 325 states and 374 transitions. [2021-10-21 19:56:09,849 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 98 [2021-10-21 19:56:09,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 98 [2021-10-21 19:56:09,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 325 states and 374 transitions. [2021-10-21 19:56:09,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:56:09,850 INFO L681 BuchiCegarLoop]: Abstraction has 325 states and 374 transitions. [2021-10-21 19:56:09,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states and 374 transitions. [2021-10-21 19:56:09,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 111. [2021-10-21 19:56:09,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 111 states have (on average 1.1261261261261262) internal successors, (125), 110 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:56:09,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 125 transitions. [2021-10-21 19:56:09,856 INFO L704 BuchiCegarLoop]: Abstraction has 111 states and 125 transitions. [2021-10-21 19:56:09,856 INFO L587 BuchiCegarLoop]: Abstraction has 111 states and 125 transitions. [2021-10-21 19:56:09,857 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-10-21 19:56:09,857 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 125 transitions. [2021-10-21 19:56:09,858 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:56:09,858 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:56:09,858 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:56:09,859 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 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] [2021-10-21 19:56:09,859 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:56:09,859 INFO L791 eck$LassoCheckResult]: Stem: 4933#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 4906#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 4907#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 4924#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 4935#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 4942#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4943#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4951#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4944#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4945#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4971#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4969#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4967#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 4965#L509-5 strlen_#res := strlen_~i~0; 4963#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 4961#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 4956#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4957#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4960#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4955#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4954#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4953#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4947#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4909#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4910#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4923#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4908#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 4904#L509-11 strlen_#res := strlen_~i~0; 4905#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 4936#L529 assume !(0 == strstr_~nl~0 % 4294967296); 4915#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 4916#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 4932#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 5000#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4999#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4913#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 4914#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4938#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4939#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 4978#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 4977#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 4975#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 4952#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 4940#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 4912#L517-3 [2021-10-21 19:56:09,859 INFO L793 eck$LassoCheckResult]: Loop: 4912#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4937#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4911#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 4912#L517-3 [2021-10-21 19:56:09,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:09,860 INFO L82 PathProgramCache]: Analyzing trace with hash -224601240, now seen corresponding path program 4 times [2021-10-21 19:56:09,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:09,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078220654] [2021-10-21 19:56:09,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:09,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:09,904 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:56:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:09,956 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:56:09,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:09,957 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 10 times [2021-10-21 19:56:09,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:09,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056012331] [2021-10-21 19:56:09,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:09,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:09,965 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:56:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:09,971 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:56:09,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:09,971 INFO L82 PathProgramCache]: Analyzing trace with hash 463587919, now seen corresponding path program 5 times [2021-10-21 19:56:09,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:56:09,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873500846] [2021-10-21 19:56:09,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:56:09,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:56:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:10,023 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:56:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:56:10,130 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:56:15,202 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:56:15,202 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:56:15,202 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:56:15,202 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:56:15,202 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:56:15,202 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:15,202 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:56:15,202 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:56:15,202 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration17_Lasso [2021-10-21 19:56:15,202 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:56:15,202 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:56:15,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:16,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:56:18,636 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:56:18,636 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:56:18,636 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:18,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:18,662 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:18,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Waiting until timeout for monitored process [2021-10-21 19:56:18,665 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:56:18,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:18,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:18,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:18,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:18,678 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:56:18,678 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:56:18,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:56:18,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Ended with exit code 0 [2021-10-21 19:56:18,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:18,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:18,716 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:18,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process [2021-10-21 19:56:18,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:56:18,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:56:18,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:56:18,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:56:18,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:56:18,745 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:56:18,745 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:56:18,789 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:56:18,915 INFO L443 ModelExtractionUtils]: Simplification made 29 calls to the SMT solver. [2021-10-21 19:56:18,915 INFO L444 ModelExtractionUtils]: 41 out of 76 variables were initially zero. Simplification set additionally 32 variables to zero. [2021-10-21 19:56:18,915 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:56:18,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:56:18,919 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:56:18,923 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:56:18,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process [2021-10-21 19:56:18,947 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:56:18,947 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:56:18,947 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~hay~0.base)_2, ULTIMATE.start_memcmp_~d~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~hay~0.base)_2 - 1*ULTIMATE.start_memcmp_~d~0.offset Supporting invariants [] [2021-10-21 19:56:18,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:19,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:19,467 INFO L297 tatePredicateManager]: 75 out of 77 supporting invariants were superfluous and have been removed [2021-10-21 19:56:19,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:19,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-21 19:56:19,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:56:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:19,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 19:56:19,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:56:19,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:56:19,913 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 [2021-10-21 19:56:19,913 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 111 states and 125 transitions. cyclomatic complexity: 21 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) [2021-10-21 19:56:19,979 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 111 states and 125 transitions. cyclomatic complexity: 21. 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 138 states and 158 transitions. Complement of second has 8 states. [2021-10-21 19:56:19,980 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 [2021-10-21 19:56:19,980 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) [2021-10-21 19:56:19,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2021-10-21 19:56:19,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 44 letters. Loop has 3 letters. [2021-10-21 19:56:19,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:56:19,981 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 19:56:20,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:20,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-21 19:56:20,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:56:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:20,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 19:56:20,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:56:20,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:56:20,417 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-21 19:56:20,417 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 111 states and 125 transitions. cyclomatic complexity: 21 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) [2021-10-21 19:56:20,476 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 111 states and 125 transitions. cyclomatic complexity: 21. 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 138 states and 158 transitions. Complement of second has 8 states. [2021-10-21 19:56:20,477 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 [2021-10-21 19:56:20,478 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) [2021-10-21 19:56:20,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2021-10-21 19:56:20,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 44 letters. Loop has 3 letters. [2021-10-21 19:56:20,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:56:20,479 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 19:56:20,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:56:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:20,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-21 19:56:20,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:56:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:56:20,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 19:56:20,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:56:20,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:56:20,914 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-21 19:56:20,915 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 111 states and 125 transitions. cyclomatic complexity: 21 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) [2021-10-21 19:56:20,975 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 111 states and 125 transitions. cyclomatic complexity: 21. 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 138 states and 158 transitions. Complement of second has 7 states. [2021-10-21 19:56:20,975 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 [2021-10-21 19:56:20,975 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) [2021-10-21 19:56:20,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 40 transitions. [2021-10-21 19:56:20,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 44 letters. Loop has 3 letters. [2021-10-21 19:56:20,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:56:20,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 47 letters. Loop has 3 letters. [2021-10-21 19:56:20,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:56:20,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 44 letters. Loop has 6 letters. [2021-10-21 19:56:20,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:56:20,977 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 158 transitions. [2021-10-21 19:56:20,979 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:56:20,979 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 0 states and 0 transitions. [2021-10-21 19:56:20,979 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:56:20,979 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:56:20,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:56:20,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:56:20,979 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:56:20,979 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:56:20,979 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:56:20,980 INFO L425 BuchiCegarLoop]: ======== Iteration 18============ [2021-10-21 19:56:20,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:56:20,980 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:56:20,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:56:20,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:56:20 BoogieIcfgContainer [2021-10-21 19:56:20,989 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:56:20,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:56:20,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:56:20,990 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:56:20,990 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:54:47" (3/4) ... [2021-10-21 19:56:20,993 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:56:20,993 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:56:20,994 INFO L168 Benchmark]: Toolchain (without parser) took 94526.81 ms. Allocated memory was 98.6 MB in the beginning and 327.2 MB in the end (delta: 228.6 MB). Free memory was 56.2 MB in the beginning and 103.3 MB in the end (delta: -47.1 MB). Peak memory consumption was 181.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:20,994 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory is still 73.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:56:20,995 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.36 ms. Allocated memory is still 98.6 MB. Free memory was 56.0 MB in the beginning and 67.9 MB in the end (delta: -11.9 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:20,995 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.60 ms. Allocated memory is still 98.6 MB. Free memory was 67.9 MB in the beginning and 65.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:20,996 INFO L168 Benchmark]: Boogie Preprocessor took 66.56 ms. Allocated memory is still 98.6 MB. Free memory was 65.6 MB in the beginning and 64.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:20,996 INFO L168 Benchmark]: RCFGBuilder took 576.21 ms. Allocated memory is still 98.6 MB. Free memory was 64.1 MB in the beginning and 50.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:20,997 INFO L168 Benchmark]: BuchiAutomizer took 93096.29 ms. Allocated memory was 98.6 MB in the beginning and 327.2 MB in the end (delta: 228.6 MB). Free memory was 50.7 MB in the beginning and 103.3 MB in the end (delta: -52.6 MB). Peak memory consumption was 178.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:56:20,997 INFO L168 Benchmark]: Witness Printer took 3.20 ms. Allocated memory is still 327.2 MB. Free memory is still 103.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:56:21,000 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory is still 73.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 674.36 ms. Allocated memory is still 98.6 MB. Free memory was 56.0 MB in the beginning and 67.9 MB in the end (delta: -11.9 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.60 ms. Allocated memory is still 98.6 MB. Free memory was 67.9 MB in the beginning and 65.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.56 ms. Allocated memory is still 98.6 MB. Free memory was 65.6 MB in the beginning and 64.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 576.21 ms. Allocated memory is still 98.6 MB. Free memory was 64.1 MB in the beginning and 50.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 93096.29 ms. Allocated memory was 98.6 MB in the beginning and 327.2 MB in the end (delta: 228.6 MB). Free memory was 50.7 MB in the beginning and 103.3 MB in the end (delta: -52.6 MB). Peak memory consumption was 178.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.20 ms. Allocated memory is still 327.2 MB. Free memory is still 103.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 17 terminating modules (11 trivial, 5 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * s + out_len and consists of 5 locations. One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[__builtin_alloca (in_len)] and consists of 6 locations. One deterministic module has affine ranking function -1 * haystack + unknown-#length-unknown[__builtin_alloca (in_len)] and consists of 6 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (out_len)] + -1 * d and consists of 10 locations. One deterministic module has affine ranking function -1 * d + unknown-#length-unknown[hay] and consists of 5 locations. One nondeterministic module has affine ranking function -1 * d + unknown-#length-unknown[hay] and consists of 5 locations. 11 modules have a trivial ranking function, the largest among these consists of 23 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 93.0s and 18 iterations. TraceHistogramMax:4. Analysis of lassos took 82.4s. Construction of modules took 2.1s. Büchi inclusion checks took 7.9s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 16. Automata minimization 112.0ms AutomataMinimizationTime, 16 MinimizatonAttempts, 641 StatesRemovedByMinimization, 12 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 111 states and ocurred in iteration 16. Nontrivial modules had stage [5, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 619 SDtfs, 1454 SDslu, 2890 SDs, 0 SdLazy, 2279 SolverSat, 232 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2188.6ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU11 SILI0 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital306 mio100 ax100 hnf99 lsp88 ukn88 mio100 lsp40 div108 bol100 ite100 ukn100 eq191 hnf86 smp98 dnf156 smp86 tf100 neg99 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 65ms VariablesStem: 3 VariablesLoop: 2 DisjunctsStem: 4 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 28 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 19:56:21,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:21,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:21,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Ended with exit code 0 [2021-10-21 19:56:21,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:21,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Forceful destruction successful, exit code 0 [2021-10-21 19:56:22,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2021-10-21 19:56:22,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00da7c03-e6aa-4ab5-9343-811d9b388131/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...