./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strstr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD --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-b2eff8b [2021-10-28 23:06:01,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:06:01,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:06:02,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:06:02,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:06:02,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:06:02,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:06:02,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:06:02,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:06:02,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:06:02,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:06:02,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:06:02,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:06:02,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:06:02,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:06:02,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:06:02,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:06:02,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:06:02,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:06:02,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:06:02,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:06:02,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:06:02,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:06:02,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:06:02,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:06:02,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:06:02,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:06:02,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:06:02,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:06:02,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:06:02,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:06:02,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:06:02,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:06:02,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:06:02,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:06:02,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:06:02,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:06:02,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:06:02,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:06:02,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:06:02,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:06:02,084 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 23:06:02,110 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:06:02,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:06:02,111 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:06:02,111 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:06:02,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:06:02,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:06:02,113 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:06:02,113 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:06:02,113 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:06:02,114 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:06:02,114 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:06:02,114 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:06:02,114 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:06:02,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:06:02,115 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:06:02,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:06:02,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:06:02,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:06:02,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:06:02,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:06:02,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:06:02,116 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:06:02,117 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:06:02,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:06:02,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:06:02,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:06:02,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:06:02,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:06:02,118 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:06:02,119 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:06:02,120 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_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0742fe35695220aa1b2c7e9e5d203b67221f8a868e729b5e5e08b32af5cde41b [2021-10-28 23:06:02,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:06:02,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:06:02,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:06:02,390 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:06:02,390 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:06:02,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-dietlibc/strstr.i [2021-10-28 23:06:02,498 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/data/52b2b7fe6/0ca5eb9344ab4bcb965fb91556efca69/FLAGbb79b0c86 [2021-10-28 23:06:03,144 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:06:03,145 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/sv-benchmarks/c/termination-dietlibc/strstr.i [2021-10-28 23:06:03,165 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/data/52b2b7fe6/0ca5eb9344ab4bcb965fb91556efca69/FLAGbb79b0c86 [2021-10-28 23:06:03,403 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/data/52b2b7fe6/0ca5eb9344ab4bcb965fb91556efca69 [2021-10-28 23:06:03,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:06:03,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:06:03,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:06:03,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:06:03,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:06:03,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:06:03" (1/1) ... [2021-10-28 23:06:03,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f1a6089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:03, skipping insertion in model container [2021-10-28 23:06:03,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:06:03" (1/1) ... [2021-10-28 23:06:03,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:06:03,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:06:03,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:06:03,879 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:06:03,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:06:03,974 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:06:03,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:03 WrapperNode [2021-10-28 23:06:03,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:06:03,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:06:03,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:06:03,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:06:03,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:03" (1/1) ... [2021-10-28 23:06:03,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:03" (1/1) ... [2021-10-28 23:06:04,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:06:04,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:06:04,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:06:04,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:06:04,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:03" (1/1) ... [2021-10-28 23:06:04,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:03" (1/1) ... [2021-10-28 23:06:04,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:03" (1/1) ... [2021-10-28 23:06:04,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:03" (1/1) ... [2021-10-28 23:06:04,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:03" (1/1) ... [2021-10-28 23:06:04,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:03" (1/1) ... [2021-10-28 23:06:04,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:03" (1/1) ... [2021-10-28 23:06:04,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:06:04,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:06:04,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:06:04,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:06:04,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:03" (1/1) ... [2021-10-28 23:06:04,064 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:04,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:04,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:04,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:06:04,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:06:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:06:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:06:04,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:06:04,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:06:04,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:06:04,545 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:06:04,545 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-28 23:06:04,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:06:04 BoogieIcfgContainer [2021-10-28 23:06:04,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:06:04,548 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:06:04,549 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:06:04,552 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:06:04,553 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:06:04,553 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:06:03" (1/3) ... [2021-10-28 23:06:04,554 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58c8c498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:06:04, skipping insertion in model container [2021-10-28 23:06:04,555 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:06:04,555 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:06:03" (2/3) ... [2021-10-28 23:06:04,555 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58c8c498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:06:04, skipping insertion in model container [2021-10-28 23:06:04,555 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:06:04,556 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:06:04" (3/3) ... [2021-10-28 23:06:04,557 INFO L389 chiAutomizerObserver]: Analyzing ICFG strstr.i [2021-10-28 23:06:04,603 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:06:04,603 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:06:04,603 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:06:04,603 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:06:04,603 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:06:04,604 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:06:04,604 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:06:04,604 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:06:04,620 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) [2021-10-28 23:06:04,640 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-10-28 23:06:04,641 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:06:04,641 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:06:04,647 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 23:06:04,647 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:06:04,647 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:06:04,648 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) [2021-10-28 23:06:04,651 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-10-28 23:06:04,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:06:04,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:06:04,652 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 23:06:04,652 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:06:04,659 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 [2021-10-28 23:06:04,659 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 [2021-10-28 23:06:04,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:04,665 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2021-10-28 23:06:04,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:04,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136286977] [2021-10-28 23:06:04,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:04,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:04,822 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:04,872 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:04,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:04,875 INFO L85 PathProgramCache]: Analyzing trace with hash 50806, now seen corresponding path program 1 times [2021-10-28 23:06:04,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:04,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921343469] [2021-10-28 23:06:04,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:04,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:04,886 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:04,896 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:04,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:04,898 INFO L85 PathProgramCache]: Analyzing trace with hash 179566670, now seen corresponding path program 1 times [2021-10-28 23:06:04,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:04,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897563677] [2021-10-28 23:06:04,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:04,899 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:04,950 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:04,994 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:05,943 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:06:05,944 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:06:05,944 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:06:05,944 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:06:05,944 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:06:05,945 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:05,945 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:06:05,945 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:06:05,945 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration1_Lasso [2021-10-28 23:06:05,945 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:06:05,945 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:06:05,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:05,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:05,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:05,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:05,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:05,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:05,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:05,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:05,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:05,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:05,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:05,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:06,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:06,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:06,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:06,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:06,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:06,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:06,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:06,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:06,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:06,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:06,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:06,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:06,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:06,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:06,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:06,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:06,828 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:06:06,833 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:06:06,835 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:06,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:06,837 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:06,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:06,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:06,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:06,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:06,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:06,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:06,856 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:06,856 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:06,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:06:06,876 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:06,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:06,916 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:06,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:06,918 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:06,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:06:06,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:06,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:06,940 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:06,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:06,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:06,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:06,941 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:06,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:06,953 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:06,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:06,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:06,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:06,984 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:06,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:07,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:07,002 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:07,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:07,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:07,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:07,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:07,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:07,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:06:07,023 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:07,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:07,059 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:07,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:07,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:07,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:06:07,064 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:07,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:07,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:07,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:07,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:07,076 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:07,076 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:07,087 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:07,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:07,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:07,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:07,125 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:07,131 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 [2021-10-28 23:06:07,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:07,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:07,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:07,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:07,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:07,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:07,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:07,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:06:07,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:07,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:07,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:07,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:07,194 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:07,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:06:07,195 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:07,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:07,202 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:07,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:07,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:07,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:07,203 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:07,203 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:07,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:07,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:07,232 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:07,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:07,233 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:07,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:06:07,235 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:07,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:07,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:07,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:07,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:07,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:07,245 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:07,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:07,247 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:07,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:07,268 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:07,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:07,269 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:07,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:06:07,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:07,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:07,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:07,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:07,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:07,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:07,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:07,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:07,282 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:07,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:07,303 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:07,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:07,304 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:07,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:06:07,306 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:07,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:07,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:07,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:07,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:07,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:07,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:07,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:07,315 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:07,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:07,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:07,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:07,337 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:07,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:06:07,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:07,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:07,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:07,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:07,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:07,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:07,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:07,351 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:07,352 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:07,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:07,372 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:07,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:07,373 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:07,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:06:07,377 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:07,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:07,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:07,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:07,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:07,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:07,387 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:07,387 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:07,388 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:07,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:07,411 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:07,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:07,412 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:07,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:06:07,413 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:07,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:07,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:07,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:07,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:07,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:07,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:07,429 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:07,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:07,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:07,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:07,453 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:07,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:06:07,460 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:07,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:07,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:07,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:07,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:07,474 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:07,475 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:07,481 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:07,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-10-28 23:06:07,501 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:07,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:07,505 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:07,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:06:07,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:07,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:07,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:07,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:07,516 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:06:07,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:07,516 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:06:07,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:07,539 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:07,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:07,573 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:07,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:07,574 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:07,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:06:07,576 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:07,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:07,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:07,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:07,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:07,589 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:07,589 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:07,604 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:07,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:07,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:07,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:07,643 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:07,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:06:07,646 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:07,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:07,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:07,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:07,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:07,655 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:07,655 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:07,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:07,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:07,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:07,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:07,687 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:07,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:06:07,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:07,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:07,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:07,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:07,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:07,718 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:07,718 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:07,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:07,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:07,777 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:07,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:07,780 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:07,788 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:07,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:07,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:07,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:07,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:07,799 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:07,799 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:07,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:06:07,815 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:07,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:07,849 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:07,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:07,850 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:07,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:07,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:07,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:07,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:07,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:07,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:07,888 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:07,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:06:07,915 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:06:07,998 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2021-10-28 23:06:07,999 INFO L444 ModelExtractionUtils]: 8 out of 31 variables were initially zero. Simplification set additionally 18 variables to zero. [2021-10-28 23:06:08,000 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:08,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:08,020 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:08,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:06:08,083 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:06:08,121 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-28 23:06:08,121 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:06:08,122 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] [2021-10-28 23:06:08,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:08,194 INFO L297 tatePredicateManager]: 8 out of 10 supporting invariants were superfluous and have been removed [2021-10-28 23:06:08,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:08,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:06:08,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:08,331 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 [2021-10-28 23:06:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:08,363 WARN L261 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:06:08,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:08,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:08,443 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 [2021-10-28 23:06:08,445 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) [2021-10-28 23:06:08,558 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. [2021-10-28 23:06:08,558 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 [2021-10-28 23:06:08,560 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) [2021-10-28 23:06:08,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 85 transitions. [2021-10-28 23:06:08,565 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-28 23:06:08,566 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:08,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 8 letters. Loop has 3 letters. [2021-10-28 23:06:08,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:08,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 5 letters. Loop has 6 letters. [2021-10-28 23:06:08,567 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:08,568 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 130 transitions. [2021-10-28 23:06:08,581 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 24 [2021-10-28 23:06:08,588 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 47 states and 62 transitions. [2021-10-28 23:06:08,589 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2021-10-28 23:06:08,590 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-10-28 23:06:08,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 62 transitions. [2021-10-28 23:06:08,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:06:08,591 INFO L681 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2021-10-28 23:06:08,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 62 transitions. [2021-10-28 23:06:08,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-28 23:06:08,628 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) [2021-10-28 23:06:08,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2021-10-28 23:06:08,630 INFO L704 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2021-10-28 23:06:08,630 INFO L587 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2021-10-28 23:06:08,630 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:06:08,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 62 transitions. [2021-10-28 23:06:08,632 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 24 [2021-10-28 23:06:08,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:06:08,632 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:06:08,633 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:06:08,633 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:06:08,633 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 [2021-10-28 23:06:08,634 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 [2021-10-28 23:06:08,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:08,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1806906284, now seen corresponding path program 1 times [2021-10-28 23:06:08,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:08,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702235022] [2021-10-28 23:06:08,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:08,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:08,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:08,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:08,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:06:08,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702235022] [2021-10-28 23:06:08,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702235022] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:06:08,747 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:06:08,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:06:08,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464354186] [2021-10-28 23:06:08,750 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:06:08,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:08,751 INFO L85 PathProgramCache]: Analyzing trace with hash 72652, now seen corresponding path program 1 times [2021-10-28 23:06:08,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:08,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127181392] [2021-10-28 23:06:08,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:08,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:08,772 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:08,777 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:08,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:06:08,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:06:08,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:06:08,833 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) [2021-10-28 23:06:08,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:06:08,852 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2021-10-28 23:06:08,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:06:08,853 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-10-28 23:06:08,856 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-10-28 23:06:08,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 36 transitions. [2021-10-28 23:06:08,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2021-10-28 23:06:08,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-10-28 23:06:08,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 36 transitions. [2021-10-28 23:06:08,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:06:08,859 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-10-28 23:06:08,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 36 transitions. [2021-10-28 23:06:08,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-28 23:06:08,867 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) [2021-10-28 23:06:08,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2021-10-28 23:06:08,868 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-10-28 23:06:08,869 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-10-28 23:06:08,869 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:06:08,869 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 36 transitions. [2021-10-28 23:06:08,874 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-10-28 23:06:08,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:06:08,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:06:08,874 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:06:08,874 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:06:08,875 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 [2021-10-28 23:06:08,875 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 [2021-10-28 23:06:08,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:08,875 INFO L85 PathProgramCache]: Analyzing trace with hash 764823385, now seen corresponding path program 1 times [2021-10-28 23:06:08,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:08,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703808127] [2021-10-28 23:06:08,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:08,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:08,910 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:08,950 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:08,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:08,951 INFO L85 PathProgramCache]: Analyzing trace with hash 72652, now seen corresponding path program 2 times [2021-10-28 23:06:08,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:08,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464243565] [2021-10-28 23:06:08,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:08,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:08,956 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:08,961 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:08,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:08,962 INFO L85 PathProgramCache]: Analyzing trace with hash 52000116, now seen corresponding path program 1 times [2021-10-28 23:06:08,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:08,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223072907] [2021-10-28 23:06:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:08,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:08,984 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:09,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:09,017 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:09,913 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:06:09,913 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:06:09,913 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:06:09,913 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:06:09,913 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:06:09,913 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:09,913 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:06:09,914 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:06:09,914 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration3_Lasso [2021-10-28 23:06:09,914 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:06:09,914 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:06:09,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:09,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:10,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:10,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:10,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:10,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:10,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:10,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:10,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:10,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:10,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:10,806 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:06:10,806 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:06:10,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:10,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:10,808 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:10,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:10,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:10,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:10,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:10,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:10,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:10,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:10,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:10,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:06:10,829 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:10,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-10-28 23:06:10,860 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:10,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:10,861 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:10,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:06:10,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:10,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:10,870 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:10,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:10,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:10,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:10,870 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:10,870 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:10,871 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:10,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:10,894 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:10,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:10,895 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:10,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:06:10,897 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:10,904 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:10,904 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:10,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:10,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:10,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:10,905 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:10,905 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:10,919 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:10,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:10,939 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:10,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:10,939 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:10,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:06:10,941 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 [2021-10-28 23:06:10,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:10,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:10,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:10,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:10,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:10,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:10,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:10,965 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:10,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-28 23:06:10,985 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:10,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:10,988 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:10,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:06:10,989 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:10,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:10,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:10,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:10,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:10,998 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:10,999 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:11,013 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:11,035 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,036 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:06:11,038 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:11,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:11,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:11,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:11,057 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-28 23:06:11,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,077 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:06:11,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:11,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,090 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:11,091 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:11,095 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-28 23:06:11,115 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,116 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:06:11,118 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 [2021-10-28 23:06:11,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:11,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:11,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:11,140 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:11,160 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,161 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 23:06:11,162 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:11,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,170 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:11,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:11,171 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:11,201 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:11,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,221 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:06:11,222 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 [2021-10-28 23:06:11,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:11,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,231 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:11,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:11,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:11,251 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,252 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 23:06:11,254 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:11,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:11,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:11,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:11,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-28 23:06:11,283 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,285 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 23:06:11,286 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:11,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:11,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,294 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:11,294 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:11,295 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-28 23:06:11,315 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,315 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 23:06:11,321 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:11,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:11,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:11,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:11,329 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-28 23:06:11,349 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,350 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 23:06:11,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:11,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:11,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,360 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:11,360 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:11,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:11,412 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,413 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,414 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 [2021-10-28 23:06:11,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 23:06:11,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,425 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:11,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:11,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:11,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,476 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,480 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:11,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 23:06:11,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:11,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:11,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:11,489 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:11,514 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,515 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,519 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:11,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 23:06:11,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:11,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:11,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:11,537 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:11,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,560 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 23:06:11,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:11,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,572 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:11,573 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:11,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:11,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,622 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 23:06:11,633 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:11,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:11,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:11,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:11,642 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:11,662 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,662 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 23:06:11,665 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 [2021-10-28 23:06:11,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,674 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:11,674 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:11,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-10-28 23:06:11,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,697 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 23:06:11,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:11,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,710 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:11,711 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:11,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:11,780 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,781 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,784 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:11,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,795 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:11,795 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:11,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 23:06:11,800 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-28 23:06:11,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,821 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 23:06:11,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:11,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,832 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:11,833 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:11,855 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:11,888 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,890 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 23:06:11,891 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:11,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,901 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:11,901 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:11,904 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:11,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,926 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:11,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 23:06:11,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:11,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,935 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:06:11,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,936 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:06:11,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:11,937 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:11,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-10-28 23:06:11,957 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:11,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:11,957 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:11,959 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 [2021-10-28 23:06:11,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 23:06:11,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:11,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:11,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:11,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:11,975 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:11,975 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:12,003 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:12,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-28 23:06:12,036 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:12,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:12,038 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:12,039 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:12,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:12,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:12,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:12,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:12,056 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:12,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:12,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 23:06:12,075 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:06:12,096 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-28 23:06:12,096 INFO L444 ModelExtractionUtils]: 23 out of 31 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-10-28 23:06:12,096 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:12,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:12,100 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:12,104 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:06:12,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 23:06:12,129 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:06:12,129 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:06:12,129 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strlen_~s.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc20.base)_2) = -1*ULTIMATE.start_strlen_~s.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc20.base)_2 Supporting invariants [] [2021-10-28 23:06:12,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:12,209 INFO L297 tatePredicateManager]: 15 out of 16 supporting invariants were superfluous and have been removed [2021-10-28 23:06:12,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:12,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:06:12,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:12,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:06:12,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:12,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:12,403 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 [2021-10-28 23:06:12,403 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) [2021-10-28 23:06:12,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:12,502 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. [2021-10-28 23:06:12,502 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 [2021-10-28 23:06:12,503 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) [2021-10-28 23:06:12,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 48 transitions. [2021-10-28 23:06:12,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-28 23:06:12,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:12,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 13 letters. Loop has 3 letters. [2021-10-28 23:06:12,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:12,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-28 23:06:12,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:12,504 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 72 transitions. [2021-10-28 23:06:12,505 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-28 23:06:12,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 43 states and 54 transitions. [2021-10-28 23:06:12,505 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-28 23:06:12,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2021-10-28 23:06:12,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 54 transitions. [2021-10-28 23:06:12,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:06:12,506 INFO L681 BuchiCegarLoop]: Abstraction has 43 states and 54 transitions. [2021-10-28 23:06:12,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 54 transitions. [2021-10-28 23:06:12,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2021-10-28 23:06:12,508 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) [2021-10-28 23:06:12,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2021-10-28 23:06:12,509 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-10-28 23:06:12,509 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-10-28 23:06:12,509 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:06:12,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 39 transitions. [2021-10-28 23:06:12,510 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-28 23:06:12,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:06:12,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:06:12,510 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:06:12,511 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:06:12,511 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); 536#L530 assume !(strstr_~nl~0 > strstr_~hl~0);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 537#L531-3 [2021-10-28 23:06:12,511 INFO L793 eck$LassoCheckResult]: Loop: 537#L531-3 assume !!(0 != strstr_~i~1);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 [2021-10-28 23:06:12,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:12,512 INFO L85 PathProgramCache]: Analyzing trace with hash 51953446, now seen corresponding path program 1 times [2021-10-28 23:06:12,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:12,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131331947] [2021-10-28 23:06:12,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:12,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:12,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:12,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:06:12,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131331947] [2021-10-28 23:06:12,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131331947] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:06:12,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:06:12,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:06:12,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236655478] [2021-10-28 23:06:12,554 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:06:12,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:12,554 INFO L85 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 1 times [2021-10-28 23:06:12,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:12,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397598346] [2021-10-28 23:06:12,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:12,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:12,560 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:12,565 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:12,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:06:12,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:06:12,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:06:12,684 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) [2021-10-28 23:06:12,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:06:12,719 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-10-28 23:06:12,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:06:12,721 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2021-10-28 23:06:12,722 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-28 23:06:12,723 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 38 transitions. [2021-10-28 23:06:12,723 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-10-28 23:06:12,723 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-10-28 23:06:12,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 38 transitions. [2021-10-28 23:06:12,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:06:12,723 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-28 23:06:12,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 38 transitions. [2021-10-28 23:06:12,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-28 23:06:12,726 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) [2021-10-28 23:06:12,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-10-28 23:06:12,726 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-28 23:06:12,726 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-28 23:06:12,726 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:06:12,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 38 transitions. [2021-10-28 23:06:12,727 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-28 23:06:12,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:06:12,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:06:12,728 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:06:12,728 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:06:12,728 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); 608#L530 assume !(strstr_~nl~0 > strstr_~hl~0);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 609#L531-3 [2021-10-28 23:06:12,729 INFO L793 eck$LassoCheckResult]: Loop: 609#L531-3 assume !!(0 != strstr_~i~1);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 [2021-10-28 23:06:12,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:12,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1349410205, now seen corresponding path program 1 times [2021-10-28 23:06:12,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:12,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726315642] [2021-10-28 23:06:12,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:12,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:12,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:12,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:06:12,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726315642] [2021-10-28 23:06:12,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726315642] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:06:12,766 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:06:12,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:06:12,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008435457] [2021-10-28 23:06:12,767 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:06:12,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:12,767 INFO L85 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 2 times [2021-10-28 23:06:12,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:12,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884273937] [2021-10-28 23:06:12,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:12,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:12,773 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:12,778 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:12,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:06:12,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:06:12,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:06:12,891 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) [2021-10-28 23:06:12,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:06:12,946 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2021-10-28 23:06:12,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:06:12,946 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 74 transitions. [2021-10-28 23:06:12,947 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-28 23:06:12,948 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 47 states and 56 transitions. [2021-10-28 23:06:12,948 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2021-10-28 23:06:12,948 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2021-10-28 23:06:12,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 56 transitions. [2021-10-28 23:06:12,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:06:12,948 INFO L681 BuchiCegarLoop]: Abstraction has 47 states and 56 transitions. [2021-10-28 23:06:12,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 56 transitions. [2021-10-28 23:06:12,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 31. [2021-10-28 23:06:12,951 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) [2021-10-28 23:06:12,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2021-10-28 23:06:12,951 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-10-28 23:06:12,951 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-10-28 23:06:12,951 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 23:06:12,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2021-10-28 23:06:12,952 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-28 23:06:12,952 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:06:12,952 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:06:12,953 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:06:12,953 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:06:12,953 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); 717#L530 assume !(strstr_~nl~0 > strstr_~hl~0);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 718#L531-3 [2021-10-28 23:06:12,953 INFO L793 eck$LassoCheckResult]: Loop: 718#L531-3 assume !!(0 != strstr_~i~1);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 [2021-10-28 23:06:12,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:12,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1796108770, now seen corresponding path program 1 times [2021-10-28 23:06:12,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:12,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223189542] [2021-10-28 23:06:12,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:12,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:13,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:13,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:06:13,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223189542] [2021-10-28 23:06:13,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223189542] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:06:13,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674418366] [2021-10-28 23:06:13,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:13,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:06:13,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:13,044 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:06:13,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-10-28 23:06:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:13,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:06:13,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:13,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:13,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674418366] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:06:13,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:06:13,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 12 [2021-10-28 23:06:13,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271220055] [2021-10-28 23:06:13,262 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:06:13,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:13,263 INFO L85 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 3 times [2021-10-28 23:06:13,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:13,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512666427] [2021-10-28 23:06:13,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:13,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:13,268 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:13,272 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:13,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:06:13,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:06:13,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:06:13,387 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. cyclomatic complexity: 9 Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:06:13,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:06:13,478 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2021-10-28 23:06:13,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:06:13,479 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 43 transitions. [2021-10-28 23:06:13,480 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-28 23:06:13,480 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 33 states and 38 transitions. [2021-10-28 23:06:13,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-10-28 23:06:13,481 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-10-28 23:06:13,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 38 transitions. [2021-10-28 23:06:13,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:06:13,481 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 38 transitions. [2021-10-28 23:06:13,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 38 transitions. [2021-10-28 23:06:13,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-10-28 23:06:13,483 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) [2021-10-28 23:06:13,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2021-10-28 23:06:13,483 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-10-28 23:06:13,483 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-10-28 23:06:13,483 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 23:06:13,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 36 transitions. [2021-10-28 23:06:13,484 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-28 23:06:13,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:06:13,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:06:13,485 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] [2021-10-28 23:06:13,485 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:06:13,485 INFO L791 eck$LassoCheckResult]: Stem: 882#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 859#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; 860#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; 873#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; 883#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 887#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 878#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; 871#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; 872#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 877#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 875#L509-5 strlen_#res := strlen_~i~0; 876#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; 879#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 880#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 862#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; 863#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; 874#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 861#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 857#L509-11 strlen_#res := strlen_~i~0; 858#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 884#L529 assume !(0 == strstr_~nl~0); 867#L530 assume !(strstr_~nl~0 > strstr_~hl~0);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 868#L531-3 [2021-10-28 23:06:13,485 INFO L793 eck$LassoCheckResult]: Loop: 868#L531-3 assume !!(0 != strstr_~i~1);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; 881#L532 assume !strstr_#t~short17; 870#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; 869#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 868#L531-3 [2021-10-28 23:06:13,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:13,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1624521053, now seen corresponding path program 1 times [2021-10-28 23:06:13,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:13,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495620917] [2021-10-28 23:06:13,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:13,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:13,503 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:13,537 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:13,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:13,541 INFO L85 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 4 times [2021-10-28 23:06:13,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:13,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541267629] [2021-10-28 23:06:13,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:13,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:13,551 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:13,558 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:13,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:13,562 INFO L85 PathProgramCache]: Analyzing trace with hash 16049535, now seen corresponding path program 1 times [2021-10-28 23:06:13,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:13,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475774391] [2021-10-28 23:06:13,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:13,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:13,599 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:13,639 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:14,866 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:06:14,866 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:06:14,867 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:06:14,867 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:06:14,867 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:06:14,867 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:14,867 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:06:14,867 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:06:14,867 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration7_Lasso [2021-10-28 23:06:14,867 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:06:14,867 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:06:14,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:14,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:14,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:14,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:14,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:14,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:14,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:14,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:14,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:14,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:14,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:14,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:14,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:15,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:15,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:15,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:15,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:15,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:15,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:15,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:15,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:15,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:15,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:15,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:15,951 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:06:15,952 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:06:15,952 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:15,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:15,960 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:16,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:16,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 23:06:16,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:16,013 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:16,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:16,013 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:16,013 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:16,014 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:16,014 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:16,015 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:16,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:16,035 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:16,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:16,036 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:16,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 23:06:16,040 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:16,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:16,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:16,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:16,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:16,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:16,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:16,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:16,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:16,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-28 23:06:16,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:16,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:16,071 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:16,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 23:06:16,072 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:16,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:16,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:16,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:16,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:16,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:16,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:16,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:16,080 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:16,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-10-28 23:06:16,100 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:16,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:16,100 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:16,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 23:06:16,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:16,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:16,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:16,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:16,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:16,113 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:16,113 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:16,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:16,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:16,135 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:16,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:16,136 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:16,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 23:06:16,137 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:16,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:16,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:16,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:16,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:16,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:16,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:16,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:16,146 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:16,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:16,166 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:16,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:16,167 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:16,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 23:06:16,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:16,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:16,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:16,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:16,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:16,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:16,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:16,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:16,176 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:16,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-28 23:06:16,196 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:16,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:16,196 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:16,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 23:06:16,200 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:16,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:16,209 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:16,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:16,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:16,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:16,210 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:16,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:16,223 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:16,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:16,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:16,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:16,257 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:16,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:16,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:16,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:16,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:16,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:16,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:16,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:16,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:16,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 23:06:16,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:16,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-10-28 23:06:16,305 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:16,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:16,308 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:16,310 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:16,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:16,320 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:16,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:16,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:16,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:16,320 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:16,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:16,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 23:06:16,331 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:16,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:16,364 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:16,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:16,365 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:16,367 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:16,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 23:06:16,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:16,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:16,377 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:06:16,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:16,384 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-10-28 23:06:16,385 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 23:06:16,411 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:06:16,452 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-10-28 23:06:16,452 INFO L444 ModelExtractionUtils]: 20 out of 31 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-10-28 23:06:16,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:16,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:16,454 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:16,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 23:06:16,456 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:06:16,464 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-10-28 23:06:16,464 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:06:16,465 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strstr_~i~1) = 1*ULTIMATE.start_strstr_~i~1 Supporting invariants [1*ULTIMATE.start_strstr_~i~1 >= 0] [2021-10-28 23:06:16,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-10-28 23:06:16,614 INFO L297 tatePredicateManager]: 36 out of 37 supporting invariants were superfluous and have been removed [2021-10-28 23:06:16,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:16,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:06:16,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:16,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:06:16,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:16,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:16,995 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.9 stem predicates 2 loop predicates [2021-10-28 23:06:16,996 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 8 Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 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) [2021-10-28 23:06:17,278 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 8. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 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 75 states and 88 transitions. Complement of second has 15 states. [2021-10-28 23:06:17,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 12 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:06:17,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 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) [2021-10-28 23:06:17,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 69 transitions. [2021-10-28 23:06:17,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 69 transitions. Stem has 22 letters. Loop has 4 letters. [2021-10-28 23:06:17,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:17,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 69 transitions. Stem has 26 letters. Loop has 4 letters. [2021-10-28 23:06:17,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:17,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 69 transitions. Stem has 22 letters. Loop has 8 letters. [2021-10-28 23:06:17,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:17,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 88 transitions. [2021-10-28 23:06:17,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:06:17,284 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 71 states and 82 transitions. [2021-10-28 23:06:17,284 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-10-28 23:06:17,285 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2021-10-28 23:06:17,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 82 transitions. [2021-10-28 23:06:17,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:06:17,285 INFO L681 BuchiCegarLoop]: Abstraction has 71 states and 82 transitions. [2021-10-28 23:06:17,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 82 transitions. [2021-10-28 23:06:17,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 36. [2021-10-28 23:06:17,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 35 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:06:17,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2021-10-28 23:06:17,289 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 43 transitions. [2021-10-28 23:06:17,289 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 43 transitions. [2021-10-28 23:06:17,289 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 23:06:17,289 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 43 transitions. [2021-10-28 23:06:17,290 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:06:17,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:06:17,290 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:06:17,291 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] [2021-10-28 23:06:17,291 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:06:17,291 INFO L791 eck$LassoCheckResult]: Stem: 1280#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1253#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; 1254#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; 1271#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; 1281#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1286#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1275#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; 1268#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; 1269#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1274#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1272#L509-5 strlen_#res := strlen_~i~0; 1273#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; 1276#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1277#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1256#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; 1257#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; 1270#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1255#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1251#L509-11 strlen_#res := strlen_~i~0; 1252#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 1282#L529 assume !(0 == strstr_~nl~0); 1263#L530 assume !(strstr_~nl~0 > strstr_~hl~0);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 1264#L531-3 assume !!(0 != strstr_~i~1);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; 1279#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; 1259#L517-3 [2021-10-28 23:06:17,292 INFO L793 eck$LassoCheckResult]: Loop: 1259#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 1283#L517-1 assume !!(0 != memcmp_#t~pre6);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; 1258#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; 1259#L517-3 [2021-10-28 23:06:17,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:17,292 INFO L85 PathProgramCache]: Analyzing trace with hash -2091601114, now seen corresponding path program 1 times [2021-10-28 23:06:17,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:17,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015485747] [2021-10-28 23:06:17,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:17,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:17,310 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:17,343 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:17,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:17,358 INFO L85 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 1 times [2021-10-28 23:06:17,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:17,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588283980] [2021-10-28 23:06:17,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:17,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:17,368 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:17,379 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:17,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:17,381 INFO L85 PathProgramCache]: Analyzing trace with hash 496824785, now seen corresponding path program 1 times [2021-10-28 23:06:17,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:17,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419683939] [2021-10-28 23:06:17,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:17,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:17,430 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:17,469 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:17,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:19,403 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:06:19,403 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:06:19,403 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:06:19,403 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:06:19,403 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:06:19,403 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:19,403 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:06:19,403 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:06:19,403 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration8_Lasso [2021-10-28 23:06:19,404 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:06:19,404 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:06:19,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:19,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:20,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:20,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:20,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:21,340 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:06:21,340 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:06:21,340 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,353 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 23:06:21,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:21,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:21,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:21,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:21,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:21,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:21,362 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:21,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:21,363 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:21,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-10-28 23:06:21,382 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,383 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 23:06:21,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:21,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:21,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:21,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:21,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:21,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:21,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:21,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:21,400 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:21,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:21,420 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,421 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 23:06:21,422 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:21,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:21,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:21,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:21,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:21,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:21,430 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:21,430 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:21,431 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:21,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-10-28 23:06:21,450 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,451 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 23:06:21,452 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:21,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:21,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:21,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:21,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:21,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:21,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:21,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:21,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:21,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:21,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,482 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-28 23:06:21,486 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:21,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:21,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:21,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:21,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:21,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:21,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:21,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:21,494 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:21,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-10-28 23:06:21,514 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,514 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-28 23:06:21,517 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:21,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:21,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:21,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:21,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:21,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:21,525 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:21,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:21,526 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:21,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:21,546 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,547 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-28 23:06:21,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:21,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:21,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:21,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:21,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:21,556 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:21,557 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:21,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:21,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-10-28 23:06:21,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,605 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-28 23:06:21,607 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:21,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:21,614 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:21,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:21,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:21,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:21,614 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:21,614 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:21,615 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:21,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:21,635 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,636 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-28 23:06:21,637 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:21,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:21,645 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:21,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:21,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:21,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:21,645 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:21,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:21,646 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:21,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-10-28 23:06:21,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,667 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-28 23:06:21,687 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 [2021-10-28 23:06:21,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:21,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:21,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:21,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:21,695 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:21,695 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:21,709 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:21,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:21,728 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,729 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-28 23:06:21,731 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:21,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:21,738 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:21,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:21,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:21,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:21,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:21,739 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:21,739 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:21,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:21,759 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,759 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-28 23:06:21,760 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:21,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:21,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:21,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:21,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:21,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:21,768 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:21,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:21,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:21,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:21,788 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,789 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-28 23:06:21,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:21,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:21,797 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:21,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:21,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:21,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:21,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:21,798 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:21,799 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:21,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:21,819 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,819 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-28 23:06:21,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:21,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:21,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:21,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:21,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:21,829 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:21,829 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:21,831 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:21,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2021-10-28 23:06:21,851 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,851 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-28 23:06:21,853 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 [2021-10-28 23:06:21,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:21,860 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:21,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:21,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:21,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:21,860 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:21,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:21,861 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:21,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2021-10-28 23:06:21,881 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,881 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-28 23:06:21,882 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:21,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:21,889 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:21,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:21,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:21,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:21,890 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:21,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:21,891 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:21,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2021-10-28 23:06:21,910 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,911 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-28 23:06:21,912 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 [2021-10-28 23:06:21,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:21,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:21,920 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 23:06:21,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:21,928 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-10-28 23:06:21,928 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 23:06:21,947 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:06:21,962 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-28 23:06:21,962 INFO L444 ModelExtractionUtils]: 32 out of 41 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-10-28 23:06:21,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:21,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:21,969 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:21,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-28 23:06:21,979 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:06:21,987 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-10-28 23:06:21,987 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:06:21,988 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_memcmp_~count) = 1*ULTIMATE.start_memcmp_~count Supporting invariants [2*ULTIMATE.start_memcmp_~count - 1 >= 0] [2021-10-28 23:06:22,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:22,176 INFO L297 tatePredicateManager]: 51 out of 52 supporting invariants were superfluous and have been removed [2021-10-28 23:06:22,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:22,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:06:22,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:22,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:06:22,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:22,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:22,454 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 3 loop predicates [2021-10-28 23:06:22,454 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 43 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) [2021-10-28 23:06:22,595 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 43 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 48 states and 58 transitions. Complement of second has 11 states. [2021-10-28 23:06:22,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 8 stem states 0 non-accepting loop states 2 accepting loop states [2021-10-28 23:06:22,596 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) [2021-10-28 23:06:22,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 30 transitions. [2021-10-28 23:06:22,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 30 transitions. Stem has 24 letters. Loop has 3 letters. [2021-10-28 23:06:22,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:22,597 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:06:22,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:22,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:06:22,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:22,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:06:22,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:22,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:22,872 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.5 stem predicates 3 loop predicates [2021-10-28 23:06:22,872 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 43 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) [2021-10-28 23:06:23,013 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 43 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 68 states and 83 transitions. Complement of second has 14 states. [2021-10-28 23:06:23,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 8 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-28 23:06:23,014 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) [2021-10-28 23:06:23,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 39 transitions. [2021-10-28 23:06:23,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 39 transitions. Stem has 24 letters. Loop has 3 letters. [2021-10-28 23:06:23,014 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:23,015 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 39 transitions. Stem has 27 letters. Loop has 3 letters. [2021-10-28 23:06:23,015 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:23,015 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 39 transitions. Stem has 24 letters. Loop has 6 letters. [2021-10-28 23:06:23,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:23,016 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 83 transitions. [2021-10-28 23:06:23,017 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:06:23,018 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 54 states and 66 transitions. [2021-10-28 23:06:23,018 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-10-28 23:06:23,018 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-10-28 23:06:23,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 66 transitions. [2021-10-28 23:06:23,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:06:23,019 INFO L681 BuchiCegarLoop]: Abstraction has 54 states and 66 transitions. [2021-10-28 23:06:23,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 66 transitions. [2021-10-28 23:06:23,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2021-10-28 23:06:23,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 45 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:06:23,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2021-10-28 23:06:23,022 INFO L704 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2021-10-28 23:06:23,023 INFO L587 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2021-10-28 23:06:23,023 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 23:06:23,023 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 56 transitions. [2021-10-28 23:06:23,023 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:06:23,023 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:06:23,023 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:06:23,024 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:06:23,025 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:06:23,025 INFO L791 eck$LassoCheckResult]: Stem: 1885#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1859#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; 1860#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; 1876#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; 1887#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1894#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1881#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; 1874#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; 1875#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1880#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1878#L509-5 strlen_#res := strlen_~i~0; 1879#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; 1882#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1883#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1862#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; 1863#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; 1877#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1861#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1857#L509-11 strlen_#res := strlen_~i~0; 1858#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 1888#L529 assume !(0 == strstr_~nl~0); 1869#L530 assume !(strstr_~nl~0 > strstr_~hl~0);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 1870#L531-3 assume !!(0 != strstr_~i~1);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; 1884#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; 1899#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 1890#L517-1 assume !!(0 != memcmp_#t~pre6);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; 1891#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 1867#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 1873#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; 1886#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 1900#L531-3 assume !!(0 != strstr_~i~1);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; 1892#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; 1865#L517-3 [2021-10-28 23:06:23,025 INFO L793 eck$LassoCheckResult]: Loop: 1865#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 1889#L517-1 assume !!(0 != memcmp_#t~pre6);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; 1864#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; 1865#L517-3 [2021-10-28 23:06:23,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:23,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1432054472, now seen corresponding path program 1 times [2021-10-28 23:06:23,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:23,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152133847] [2021-10-28 23:06:23,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:23,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:23,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:23,245 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:23,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:06:23,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152133847] [2021-10-28 23:06:23,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152133847] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:06:23,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451215564] [2021-10-28 23:06:23,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:23,246 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:06:23,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:23,247 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:06:23,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2021-10-28 23:06:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:23,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 23:06:23,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:23,664 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:23,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451215564] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:06:23,664 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:06:23,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 15 [2021-10-28 23:06:23,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684311212] [2021-10-28 23:06:23,665 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:06:23,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:23,666 INFO L85 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 2 times [2021-10-28 23:06:23,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:23,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635615375] [2021-10-28 23:06:23,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:23,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:23,672 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:23,677 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:23,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:06:23,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:06:23,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:06:23,799 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. cyclomatic complexity: 16 Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:06:23,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:06:23,978 INFO L93 Difference]: Finished difference Result 145 states and 177 transitions. [2021-10-28 23:06:23,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:06:23,981 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 145 states and 177 transitions. [2021-10-28 23:06:23,982 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:06:23,984 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 145 states to 124 states and 153 transitions. [2021-10-28 23:06:23,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2021-10-28 23:06:23,984 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2021-10-28 23:06:23,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 124 states and 153 transitions. [2021-10-28 23:06:23,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:06:23,984 INFO L681 BuchiCegarLoop]: Abstraction has 124 states and 153 transitions. [2021-10-28 23:06:23,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states and 153 transitions. [2021-10-28 23:06:23,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 57. [2021-10-28 23:06:23,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 57 states have (on average 1.1929824561403508) internal successors, (68), 56 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:06:23,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2021-10-28 23:06:23,994 INFO L704 BuchiCegarLoop]: Abstraction has 57 states and 68 transitions. [2021-10-28 23:06:23,995 INFO L587 BuchiCegarLoop]: Abstraction has 57 states and 68 transitions. [2021-10-28 23:06:23,995 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 23:06:23,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 68 transitions. [2021-10-28 23:06:23,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:06:23,996 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:06:23,996 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:06:23,998 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] [2021-10-28 23:06:24,003 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:06:24,004 INFO L791 eck$LassoCheckResult]: Stem: 2202#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2171#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; 2172#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; 2190#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; 2204#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2210#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2195#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; 2196#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; 2211#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2212#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2191#L509-5 strlen_#res := strlen_~i~0; 2192#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; 2199#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2200#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2219#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; 2218#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; 2216#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2174#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; 2175#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; 2189#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2173#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2169#L509-11 strlen_#res := strlen_~i~0; 2170#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 2205#L529 assume !(0 == strstr_~nl~0); 2182#L530 assume !(strstr_~nl~0 > strstr_~hl~0);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 2183#L531-3 assume !!(0 != strstr_~i~1);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; 2201#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; 2209#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2217#L517-1 assume !(0 != memcmp_#t~pre6);havoc memcmp_#t~pre6; 2214#L517-4 memcmp_#res := 0; 2179#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 2186#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; 2222#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 2220#L531-3 assume !!(0 != strstr_~i~1);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; 2208#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; 2177#L517-3 [2021-10-28 23:06:24,004 INFO L793 eck$LassoCheckResult]: Loop: 2177#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2206#L517-1 assume !!(0 != memcmp_#t~pre6);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; 2176#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; 2177#L517-3 [2021-10-28 23:06:24,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:24,005 INFO L85 PathProgramCache]: Analyzing trace with hash 191871499, now seen corresponding path program 1 times [2021-10-28 23:06:24,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:24,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096538758] [2021-10-28 23:06:24,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:24,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:24,038 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-28 23:06:24,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:06:24,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096538758] [2021-10-28 23:06:24,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096538758] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:06:24,039 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:06:24,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:06:24,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848714136] [2021-10-28 23:06:24,039 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:06:24,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:24,040 INFO L85 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 3 times [2021-10-28 23:06:24,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:24,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543236738] [2021-10-28 23:06:24,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:24,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:24,046 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:24,050 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:24,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:06:24,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:06:24,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:06:24,169 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. cyclomatic complexity: 17 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) [2021-10-28 23:06:24,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:06:24,186 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2021-10-28 23:06:24,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:06:24,187 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 69 transitions. [2021-10-28 23:06:24,187 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:06:24,188 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 54 states and 62 transitions. [2021-10-28 23:06:24,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2021-10-28 23:06:24,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-10-28 23:06:24,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 62 transitions. [2021-10-28 23:06:24,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:06:24,188 INFO L681 BuchiCegarLoop]: Abstraction has 54 states and 62 transitions. [2021-10-28 23:06:24,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 62 transitions. [2021-10-28 23:06:24,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2021-10-28 23:06:24,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.14) internal successors, (57), 49 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:06:24,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2021-10-28 23:06:24,192 INFO L704 BuchiCegarLoop]: Abstraction has 50 states and 57 transitions. [2021-10-28 23:06:24,192 INFO L587 BuchiCegarLoop]: Abstraction has 50 states and 57 transitions. [2021-10-28 23:06:24,192 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-28 23:06:24,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 57 transitions. [2021-10-28 23:06:24,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:06:24,193 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:06:24,193 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:06:24,194 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] [2021-10-28 23:06:24,194 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:06:24,194 INFO L791 eck$LassoCheckResult]: Stem: 2322#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2296#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; 2297#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; 2313#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; 2324#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2329#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2318#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; 2311#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; 2312#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2330#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; 2343#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; 2342#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2341#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2340#L509-5 strlen_#res := strlen_~i~0; 2339#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; 2338#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2337#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2331#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; 2335#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; 2332#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2298#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2294#L509-11 strlen_#res := strlen_~i~0; 2295#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 2325#L529 assume !(0 == strstr_~nl~0); 2306#L530 assume !(strstr_~nl~0 > strstr_~hl~0);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 2307#L531-3 assume !!(0 != strstr_~i~1);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; 2321#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; 2305#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2327#L517-1 assume !!(0 != memcmp_#t~pre6);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; 2303#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 2304#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 2310#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; 2336#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 2333#L531-3 assume !!(0 != strstr_~i~1);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; 2328#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; 2302#L517-3 [2021-10-28 23:06:24,195 INFO L793 eck$LassoCheckResult]: Loop: 2302#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2326#L517-1 assume !!(0 != memcmp_#t~pre6);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; 2301#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; 2302#L517-3 [2021-10-28 23:06:24,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:24,195 INFO L85 PathProgramCache]: Analyzing trace with hash -857494797, now seen corresponding path program 2 times [2021-10-28 23:06:24,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:24,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881077888] [2021-10-28 23:06:24,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:24,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:24,316 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:06:24,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:06:24,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881077888] [2021-10-28 23:06:24,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881077888] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:06:24,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950559630] [2021-10-28 23:06:24,317 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:06:24,317 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:06:24,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:24,320 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:06:24,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2021-10-28 23:06:24,495 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:06:24,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:06:24,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 23:06:24,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:06:24,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950559630] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:06:24,693 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:06:24,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2021-10-28 23:06:24,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427877492] [2021-10-28 23:06:24,694 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:06:24,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:24,694 INFO L85 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 4 times [2021-10-28 23:06:24,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:24,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961255197] [2021-10-28 23:06:24,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:24,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:24,702 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:24,707 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:24,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:06:24,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:06:24,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:06:24,831 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. cyclomatic complexity: 12 Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:06:25,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:06:25,014 INFO L93 Difference]: Finished difference Result 86 states and 98 transitions. [2021-10-28 23:06:25,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:06:25,020 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 98 transitions. [2021-10-28 23:06:25,020 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 23:06:25,021 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 81 states and 93 transitions. [2021-10-28 23:06:25,021 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-28 23:06:25,021 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-28 23:06:25,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 93 transitions. [2021-10-28 23:06:25,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:06:25,022 INFO L681 BuchiCegarLoop]: Abstraction has 81 states and 93 transitions. [2021-10-28 23:06:25,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states and 93 transitions. [2021-10-28 23:06:25,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 42. [2021-10-28 23:06:25,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 41 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:06:25,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2021-10-28 23:06:25,024 INFO L704 BuchiCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-10-28 23:06:25,024 INFO L587 BuchiCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-10-28 23:06:25,024 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-28 23:06:25,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 48 transitions. [2021-10-28 23:06:25,025 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:06:25,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:06:25,025 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:06:25,026 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] [2021-10-28 23:06:25,026 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:06:25,026 INFO L791 eck$LassoCheckResult]: Stem: 2591#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2565#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; 2566#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; 2582#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; 2593#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2598#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2587#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; 2580#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; 2581#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2586#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2584#L509-5 strlen_#res := strlen_~i~0; 2585#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; 2588#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2589#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2573#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; 2574#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; 2583#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2599#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; 2601#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; 2600#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2572#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2563#L509-11 strlen_#res := strlen_~i~0; 2564#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 2594#L529 assume !(0 == strstr_~nl~0); 2575#L530 assume !(strstr_~nl~0 > strstr_~hl~0);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 2576#L531-3 assume !!(0 != strstr_~i~1);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; 2590#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; 2571#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2596#L517-1 assume !!(0 != memcmp_#t~pre6);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; 2569#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 2570#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 2579#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; 2604#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 2602#L531-3 assume !!(0 != strstr_~i~1);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; 2597#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; 2568#L517-3 [2021-10-28 23:06:25,026 INFO L793 eck$LassoCheckResult]: Loop: 2568#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2595#L517-1 assume !!(0 != memcmp_#t~pre6);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; 2567#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; 2568#L517-3 [2021-10-28 23:06:25,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:25,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1795103955, now seen corresponding path program 3 times [2021-10-28 23:06:25,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:25,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190291583] [2021-10-28 23:06:25,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:25,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:25,147 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-28 23:06:25,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:06:25,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190291583] [2021-10-28 23:06:25,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190291583] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:06:25,148 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:06:25,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:06:25,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436072938] [2021-10-28 23:06:25,150 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:06:25,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:25,150 INFO L85 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 5 times [2021-10-28 23:06:25,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:25,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37424265] [2021-10-28 23:06:25,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:25,151 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:25,157 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:25,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:25,164 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:25,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:06:25,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:06:25,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:06:25,282 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. cyclomatic complexity: 11 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) [2021-10-28 23:06:25,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:06:25,337 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2021-10-28 23:06:25,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:06:25,338 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 55 transitions. [2021-10-28 23:06:25,338 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:06:25,339 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 55 transitions. [2021-10-28 23:06:25,339 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-10-28 23:06:25,339 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-28 23:06:25,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 55 transitions. [2021-10-28 23:06:25,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:06:25,339 INFO L681 BuchiCegarLoop]: Abstraction has 49 states and 55 transitions. [2021-10-28 23:06:25,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 55 transitions. [2021-10-28 23:06:25,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2021-10-28 23:06:25,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.1333333333333333) internal successors, (51), 44 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:06:25,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2021-10-28 23:06:25,341 INFO L704 BuchiCegarLoop]: Abstraction has 45 states and 51 transitions. [2021-10-28 23:06:25,341 INFO L587 BuchiCegarLoop]: Abstraction has 45 states and 51 transitions. [2021-10-28 23:06:25,341 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-28 23:06:25,342 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 51 transitions. [2021-10-28 23:06:25,342 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:06:25,342 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:06:25,342 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:06:25,342 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] [2021-10-28 23:06:25,343 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:06:25,343 INFO L791 eck$LassoCheckResult]: Stem: 2694#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2668#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; 2669#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; 2685#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; 2696#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2703#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2690#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; 2683#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; 2684#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2689#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2687#L509-5 strlen_#res := strlen_~i~0; 2688#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; 2691#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2692#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2704#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; 2710#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; 2705#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2671#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; 2672#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); 2670#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2666#L509-11 strlen_#res := strlen_~i~0; 2667#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 2697#L529 assume !(0 == strstr_~nl~0); 2677#L530 assume !(strstr_~nl~0 > strstr_~hl~0);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 2678#L531-3 assume !!(0 != strstr_~i~1);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; 2693#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; 2702#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2699#L517-1 assume !!(0 != memcmp_#t~pre6);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; 2675#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; 2676#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2707#L517-1 assume !!(0 != memcmp_#t~pre6);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; 2706#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 2681#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 2682#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; 2695#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 2708#L531-3 assume !!(0 != strstr_~i~1);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; 2700#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; 2674#L517-3 [2021-10-28 23:06:25,343 INFO L793 eck$LassoCheckResult]: Loop: 2674#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2698#L517-1 assume !!(0 != memcmp_#t~pre6);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; 2673#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; 2674#L517-3 [2021-10-28 23:06:25,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:25,343 INFO L85 PathProgramCache]: Analyzing trace with hash -2138077336, now seen corresponding path program 1 times [2021-10-28 23:06:25,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:25,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686297041] [2021-10-28 23:06:25,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:25,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:25,477 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-28 23:06:25,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:06:25,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686297041] [2021-10-28 23:06:25,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686297041] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:06:25,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731320906] [2021-10-28 23:06:25,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:25,479 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:06:25,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:25,484 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:06:25,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2021-10-28 23:06:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:25,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:06:25,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:25,917 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-28 23:06:25,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731320906] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:06:25,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:06:25,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-10-28 23:06:25,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319000985] [2021-10-28 23:06:25,918 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:06:25,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:25,919 INFO L85 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 6 times [2021-10-28 23:06:25,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:25,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186363963] [2021-10-28 23:06:25,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:25,920 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:25,926 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:25,930 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:26,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:06:26,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:06:26,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:06:26,036 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. cyclomatic complexity: 11 Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:06:26,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:06:26,161 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2021-10-28 23:06:26,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:06:26,161 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 85 transitions. [2021-10-28 23:06:26,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:06:26,162 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 50 states and 56 transitions. [2021-10-28 23:06:26,162 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-10-28 23:06:26,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-10-28 23:06:26,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 56 transitions. [2021-10-28 23:06:26,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:06:26,163 INFO L681 BuchiCegarLoop]: Abstraction has 50 states and 56 transitions. [2021-10-28 23:06:26,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 56 transitions. [2021-10-28 23:06:26,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2021-10-28 23:06:26,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.125) internal successors, (54), 47 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) [2021-10-28 23:06:26,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2021-10-28 23:06:26,165 INFO L704 BuchiCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-10-28 23:06:26,166 INFO L587 BuchiCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-10-28 23:06:26,166 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-28 23:06:26,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 54 transitions. [2021-10-28 23:06:26,166 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:06:26,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:06:26,166 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:06:26,167 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] [2021-10-28 23:06:26,167 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:06:26,168 INFO L791 eck$LassoCheckResult]: Stem: 2952#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2925#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; 2926#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; 2942#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; 2954#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2960#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2947#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; 2948#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; 2961#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2962#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; 2940#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; 2941#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2946#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2944#L509-5 strlen_#res := strlen_~i~0; 2945#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; 2949#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2950#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2928#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; 2929#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; 2943#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2963#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; 2967#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; 2966#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2927#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2923#L509-11 strlen_#res := strlen_~i~0; 2924#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 2955#L529 assume !(0 == strstr_~nl~0); 2934#L530 assume !(strstr_~nl~0 > strstr_~hl~0);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 2935#L531-3 assume !!(0 != strstr_~i~1);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; 2951#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; 2959#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2957#L517-1 assume !!(0 != memcmp_#t~pre6);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; 2932#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; 2933#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2965#L517-1 assume !!(0 != memcmp_#t~pre6);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; 2964#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 2938#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 2939#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; 2970#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 2968#L531-3 assume !!(0 != strstr_~i~1);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; 2958#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; 2931#L517-3 [2021-10-28 23:06:26,168 INFO L793 eck$LassoCheckResult]: Loop: 2931#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2956#L517-1 assume !!(0 != memcmp_#t~pre6);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; 2930#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; 2931#L517-3 [2021-10-28 23:06:26,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:26,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1050158307, now seen corresponding path program 2 times [2021-10-28 23:06:26,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:26,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332658673] [2021-10-28 23:06:26,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:26,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:26,355 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:06:26,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:06:26,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332658673] [2021-10-28 23:06:26,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332658673] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:06:26,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035209497] [2021-10-28 23:06:26,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:06:26,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:06:26,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:26,361 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:06:26,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2021-10-28 23:06:26,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:06:26,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:06:26,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 23:06:26,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:26,966 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:06:26,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035209497] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:06:26,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:06:26,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 18 [2021-10-28 23:06:26,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775138887] [2021-10-28 23:06:26,967 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:06:26,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:26,968 INFO L85 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 7 times [2021-10-28 23:06:26,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:26,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716394350] [2021-10-28 23:06:26,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:26,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:26,974 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:26,978 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:27,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:06:27,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:06:27,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:06:27,098 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. cyclomatic complexity: 11 Second operand has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:06:27,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:06:27,296 INFO L93 Difference]: Finished difference Result 141 states and 159 transitions. [2021-10-28 23:06:27,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:06:27,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 141 states and 159 transitions. [2021-10-28 23:06:27,298 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-28 23:06:27,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 141 states to 121 states and 138 transitions. [2021-10-28 23:06:27,299 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2021-10-28 23:06:27,299 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2021-10-28 23:06:27,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 121 states and 138 transitions. [2021-10-28 23:06:27,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:06:27,300 INFO L681 BuchiCegarLoop]: Abstraction has 121 states and 138 transitions. [2021-10-28 23:06:27,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states and 138 transitions. [2021-10-28 23:06:27,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 59. [2021-10-28 23:06:27,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 1.11864406779661) internal successors, (66), 58 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:06:27,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2021-10-28 23:06:27,303 INFO L704 BuchiCegarLoop]: Abstraction has 59 states and 66 transitions. [2021-10-28 23:06:27,303 INFO L587 BuchiCegarLoop]: Abstraction has 59 states and 66 transitions. [2021-10-28 23:06:27,303 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-28 23:06:27,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 66 transitions. [2021-10-28 23:06:27,304 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:06:27,304 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:06:27,304 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:06:27,304 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] [2021-10-28 23:06:27,305 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:06:27,305 INFO L791 eck$LassoCheckResult]: Stem: 3291#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3265#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; 3266#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; 3282#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; 3293#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3299#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3300#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; 3306#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; 3301#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3287#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; 3280#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; 3281#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3286#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3284#L509-5 strlen_#res := strlen_~i~0; 3285#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; 3288#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3289#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3315#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; 3314#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; 3313#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3303#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; 3312#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; 3304#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3268#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; 3269#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; 3283#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3267#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3263#L509-11 strlen_#res := strlen_~i~0; 3264#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 3294#L529 assume !(0 == strstr_~nl~0); 3274#L530 assume !(strstr_~nl~0 > strstr_~hl~0);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 3275#L531-3 assume !!(0 != strstr_~i~1);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; 3290#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; 3298#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3296#L517-1 assume !!(0 != memcmp_#t~pre6);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; 3272#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; 3273#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3311#L517-1 assume !!(0 != memcmp_#t~pre6);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; 3310#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 3278#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 3279#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; 3309#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 3307#L531-3 assume !!(0 != strstr_~i~1);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; 3297#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; 3271#L517-3 [2021-10-28 23:06:27,305 INFO L793 eck$LassoCheckResult]: Loop: 3271#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3295#L517-1 assume !!(0 != memcmp_#t~pre6);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; 3270#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; 3271#L517-3 [2021-10-28 23:06:27,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:27,306 INFO L85 PathProgramCache]: Analyzing trace with hash -224601240, now seen corresponding path program 3 times [2021-10-28 23:06:27,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:27,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856982783] [2021-10-28 23:06:27,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:27,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:27,347 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:27,389 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:27,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:27,390 INFO L85 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 8 times [2021-10-28 23:06:27,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:27,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943579465] [2021-10-28 23:06:27,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:27,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:27,395 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:27,399 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:27,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:27,400 INFO L85 PathProgramCache]: Analyzing trace with hash 463587919, now seen corresponding path program 4 times [2021-10-28 23:06:27,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:06:27,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250059938] [2021-10-28 23:06:27,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:06:27,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:06:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:27,474 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:06:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:06:27,521 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:06:31,770 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:06:31,770 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:06:31,770 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:06:31,770 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:06:31,770 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:06:31,770 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:31,771 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:06:31,771 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:06:31,771 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration15_Lasso [2021-10-28 23:06:31,771 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:06:31,771 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:06:31,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:31,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:31,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:31,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:33,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:06:34,744 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:06:34,744 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:06:34,744 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:34,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:34,745 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:34,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-10-28 23:06:34,747 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:34,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:34,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:34,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:34,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:34,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:34,754 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:34,754 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:34,755 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:34,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:34,775 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:34,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:34,775 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:34,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-28 23:06:34,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:34,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:34,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:34,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:34,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:34,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:34,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:34,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:34,785 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:34,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2021-10-28 23:06:34,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:34,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:34,805 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:34,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-28 23:06:34,807 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:34,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:34,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:06:34,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:34,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:34,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:34,815 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:06:34,815 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:06:34,815 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:34,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2021-10-28 23:06:34,835 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:34,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:34,835 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:34,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-28 23:06:34,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:34,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:34,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:34,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:34,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:34,844 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:34,844 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:34,847 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:34,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Ended with exit code 0 [2021-10-28 23:06:34,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:34,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:34,866 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:34,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-28 23:06:34,868 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:34,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:34,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:34,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:34,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:34,884 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:34,884 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:34,898 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:34,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2021-10-28 23:06:34,917 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:34,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:34,918 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:34,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-28 23:06:34,919 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:06:34,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:34,926 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-28 23:06:34,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:34,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:34,927 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-28 23:06:34,927 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:34,929 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:06:34,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2021-10-28 23:06:34,949 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:34,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:34,949 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:34,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-28 23:06:34,951 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 [2021-10-28 23:06:34,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:06:34,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:06:34,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:06:34,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:06:34,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:06:34,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:06:35,003 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:06:35,106 INFO L443 ModelExtractionUtils]: Simplification made 32 calls to the SMT solver. [2021-10-28 23:06:35,106 INFO L444 ModelExtractionUtils]: 41 out of 76 variables were initially zero. Simplification set additionally 32 variables to zero. [2021-10-28 23:06:35,106 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:06:35,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:06:35,108 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:06:35,125 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:06:35,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-28 23:06:35,153 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:06:35,153 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:06:35,154 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc20.base)_5, ULTIMATE.start_memcmp_~d~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc20.base)_5 - 1*ULTIMATE.start_memcmp_~d~0.offset Supporting invariants [] [2021-10-28 23:06:35,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:35,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:35,594 INFO L297 tatePredicateManager]: 74 out of 77 supporting invariants were superfluous and have been removed [2021-10-28 23:06:35,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:35,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:06:35,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:36,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:06:36,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:36,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:36,175 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-10-28 23:06:36,176 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59 states and 66 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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) [2021-10-28 23:06:36,225 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59 states and 66 transitions. cyclomatic complexity: 12. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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 81 states and 92 transitions. Complement of second has 9 states. [2021-10-28 23:06:36,225 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 [2021-10-28 23:06:36,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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) [2021-10-28 23:06:36,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 34 transitions. [2021-10-28 23:06:36,226 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 44 letters. Loop has 3 letters. [2021-10-28 23:06:36,226 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:36,227 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:06:36,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:36,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:06:36,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:36,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:06:36,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:36,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:36,776 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 2 loop predicates [2021-10-28 23:06:36,776 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59 states and 66 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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) [2021-10-28 23:06:36,833 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59 states and 66 transitions. cyclomatic complexity: 12. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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 81 states and 92 transitions. Complement of second has 9 states. [2021-10-28 23:06:36,834 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 [2021-10-28 23:06:36,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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) [2021-10-28 23:06:36,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 34 transitions. [2021-10-28 23:06:36,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 44 letters. Loop has 3 letters. [2021-10-28 23:06:36,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:36,835 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:06:36,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:06:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:36,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:06:36,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:06:37,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:06:37,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:06:37,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:06:37,395 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-10-28 23:06:37,395 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59 states and 66 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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) [2021-10-28 23:06:37,447 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59 states and 66 transitions. cyclomatic complexity: 12. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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 72 states and 81 transitions. Complement of second has 8 states. [2021-10-28 23:06:37,447 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 [2021-10-28 23:06:37,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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) [2021-10-28 23:06:37,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 40 transitions. [2021-10-28 23:06:37,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 40 transitions. Stem has 44 letters. Loop has 3 letters. [2021-10-28 23:06:37,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:37,449 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 40 transitions. Stem has 47 letters. Loop has 3 letters. [2021-10-28 23:06:37,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:37,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 40 transitions. Stem has 44 letters. Loop has 6 letters. [2021-10-28 23:06:37,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:06:37,452 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 81 transitions. [2021-10-28 23:06:37,452 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:06:37,453 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 0 states and 0 transitions. [2021-10-28 23:06:37,453 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:06:37,453 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:06:37,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:06:37,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:06:37,453 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:06:37,453 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:06:37,453 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:06:37,454 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-10-28 23:06:37,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:06:37,454 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:06:37,454 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:06:37,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:06:37 BoogieIcfgContainer [2021-10-28 23:06:37,461 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:06:37,462 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:06:37,462 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:06:37,462 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:06:37,463 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:06:04" (3/4) ... [2021-10-28 23:06:37,466 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:06:37,466 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:06:37,468 INFO L168 Benchmark]: Toolchain (without parser) took 34059.68 ms. Allocated memory was 102.8 MB in the beginning and 239.1 MB in the end (delta: 136.3 MB). Free memory was 68.8 MB in the beginning and 99.8 MB in the end (delta: -31.0 MB). Peak memory consumption was 105.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:37,468 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 102.8 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:06:37,469 INFO L168 Benchmark]: CACSL2BoogieTranslator took 566.41 ms. Allocated memory is still 102.8 MB. Free memory was 68.6 MB in the beginning and 71.7 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:37,470 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.36 ms. Allocated memory is still 102.8 MB. Free memory was 71.7 MB in the beginning and 69.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:37,470 INFO L168 Benchmark]: Boogie Preprocessor took 30.85 ms. Allocated memory is still 102.8 MB. Free memory was 69.3 MB in the beginning and 68.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:37,470 INFO L168 Benchmark]: RCFGBuilder took 491.71 ms. Allocated memory is still 102.8 MB. Free memory was 68.0 MB in the beginning and 54.6 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:37,471 INFO L168 Benchmark]: BuchiAutomizer took 32912.77 ms. Allocated memory was 102.8 MB in the beginning and 239.1 MB in the end (delta: 136.3 MB). Free memory was 54.6 MB in the beginning and 99.8 MB in the end (delta: -45.2 MB). Peak memory consumption was 93.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:37,471 INFO L168 Benchmark]: Witness Printer took 4.68 ms. Allocated memory is still 239.1 MB. Free memory is still 99.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:06:37,473 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 102.8 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 566.41 ms. Allocated memory is still 102.8 MB. Free memory was 68.6 MB in the beginning and 71.7 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.36 ms. Allocated memory is still 102.8 MB. Free memory was 71.7 MB in the beginning and 69.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.85 ms. Allocated memory is still 102.8 MB. Free memory was 69.3 MB in the beginning and 68.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 491.71 ms. Allocated memory is still 102.8 MB. Free memory was 68.0 MB in the beginning and 54.6 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 32912.77 ms. Allocated memory was 102.8 MB in the beginning and 239.1 MB in the end (delta: 136.3 MB). Free memory was 54.6 MB in the beginning and 99.8 MB in the end (delta: -45.2 MB). Peak memory consumption was 93.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.68 ms. Allocated memory is still 239.1 MB. Free memory is still 99.8 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 15 terminating modules (10 trivial, 4 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 i and consists of 14 locations. One deterministic module has affine ranking function count and consists of 11 locations. One nondeterministic module has affine ranking function -1 * d + unknown-#length-unknown[__builtin_alloca (in_len)] and consists of 6 locations. 10 modules have a trivial ranking function, the largest among these consists of 18 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 32.8s and 16 iterations. TraceHistogramMax:4. Analysis of lassos took 27.6s. Construction of modules took 0.7s. Büchi inclusion checks took 4.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 14. Automata minimization 0.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 251 StatesRemovedByMinimization, 11 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 59 states and ocurred in iteration 14. Nontrivial modules had stage [3, 1, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 509 SDtfs, 1182 SDslu, 1548 SDs, 0 SdLazy, 1047 SolverSat, 188 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU10 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital291 mio100 ax100 hnf99 lsp89 ukn86 mio100 lsp40 div107 bol100 ite100 ukn100 eq189 hnf86 smp97 dnf148 smp89 tf100 neg99 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 100ms VariablesStem: 5 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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! [2021-10-28 23:06:37,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:37,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2021-10-28 23:06:37,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:38,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2021-10-28 23:06:38,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-10-28 23:06:38,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6ef0eb4-8773-4297-816a-73d07a6cc307/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...