./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strcasecmp.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strcasecmp.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa --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 4b83d1547bf3dd46e9571984e7e0a13f5187eff03a7662628a99d75ecc5b0412 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:08:51,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:08:51,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:08:51,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:08:51,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:08:51,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:08:51,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:08:51,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:08:51,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:08:51,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:08:51,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:08:51,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:08:51,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:08:51,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:08:51,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:08:51,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:08:51,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:08:51,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:08:51,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:08:51,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:08:51,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:08:51,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:08:51,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:08:51,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:08:51,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:08:51,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:08:51,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:08:51,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:08:51,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:08:51,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:08:51,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:08:51,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:08:51,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:08:51,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:08:51,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:08:51,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:08:51,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:08:51,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:08:51,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:08:51,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:08:51,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:08:51,611 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-07 01:08:51,630 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:08:51,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:08:51,630 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:08:51,630 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:08:51,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:08:51,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:08:51,631 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:08:51,631 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-07 01:08:51,631 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-07 01:08:51,632 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-07 01:08:51,632 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-07 01:08:51,632 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-07 01:08:51,632 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-07 01:08:51,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:08:51,632 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-07 01:08:51,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:08:51,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:08:51,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-07 01:08:51,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-07 01:08:51,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-07 01:08:51,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:08:51,633 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-07 01:08:51,633 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:08:51,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-07 01:08:51,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:08:51,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:08:51,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:08:51,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:08:51,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:08:51,634 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-07 01:08:51,634 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_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b83d1547bf3dd46e9571984e7e0a13f5187eff03a7662628a99d75ecc5b0412 [2021-12-07 01:08:51,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:08:51,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:08:51,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:08:51,842 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:08:51,843 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:08:51,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-dietlibc/strcasecmp.i [2021-12-07 01:08:51,887 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/data/4679fb794/74ae3e6d0a7348adbb228c41a36a2c90/FLAGc2332aa27 [2021-12-07 01:08:52,298 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:08:52,298 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/sv-benchmarks/c/termination-dietlibc/strcasecmp.i [2021-12-07 01:08:52,307 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/data/4679fb794/74ae3e6d0a7348adbb228c41a36a2c90/FLAGc2332aa27 [2021-12-07 01:08:52,317 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/data/4679fb794/74ae3e6d0a7348adbb228c41a36a2c90 [2021-12-07 01:08:52,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:08:52,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:08:52,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:08:52,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:08:52,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:08:52,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:08:52" (1/1) ... [2021-12-07 01:08:52,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2402a0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:08:52, skipping insertion in model container [2021-12-07 01:08:52,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:08:52" (1/1) ... [2021-12-07 01:08:52,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:08:52,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:08:52,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:08:52,531 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:08:52,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:08:52,581 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:08:52,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:08:52 WrapperNode [2021-12-07 01:08:52,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:08:52,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:08:52,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:08:52,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:08:52,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:08:52" (1/1) ... [2021-12-07 01:08:52,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:08:52" (1/1) ... [2021-12-07 01:08:52,612 INFO L137 Inliner]: procedures = 114, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85 [2021-12-07 01:08:52,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:08:52,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:08:52,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:08:52,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:08:52,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:08:52" (1/1) ... [2021-12-07 01:08:52,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:08:52" (1/1) ... [2021-12-07 01:08:52,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:08:52" (1/1) ... [2021-12-07 01:08:52,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:08:52" (1/1) ... [2021-12-07 01:08:52,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:08:52" (1/1) ... [2021-12-07 01:08:52,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:08:52" (1/1) ... [2021-12-07 01:08:52,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:08:52" (1/1) ... [2021-12-07 01:08:52,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:08:52,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:08:52,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:08:52,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:08:52,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:08:52" (1/1) ... [2021-12-07 01:08:52,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:52,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:52,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:52,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-07 01:08:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 01:08:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 01:08:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 01:08:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 01:08:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:08:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:08:52,750 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:08:52,751 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:08:52,880 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:08:52,886 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:08:52,886 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-07 01:08:52,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:08:52 BoogieIcfgContainer [2021-12-07 01:08:52,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:08:52,889 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-07 01:08:52,889 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-07 01:08:52,892 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-07 01:08:52,892 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:08:52,893 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 01:08:52" (1/3) ... [2021-12-07 01:08:52,893 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f42e71e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:08:52, skipping insertion in model container [2021-12-07 01:08:52,894 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:08:52,894 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:08:52" (2/3) ... [2021-12-07 01:08:52,894 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f42e71e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 01:08:52, skipping insertion in model container [2021-12-07 01:08:52,894 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 01:08:52,894 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:08:52" (3/3) ... [2021-12-07 01:08:52,895 INFO L388 chiAutomizerObserver]: Analyzing ICFG strcasecmp.i [2021-12-07 01:08:52,931 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-07 01:08:52,931 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-07 01:08:52,931 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-07 01:08:52,931 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-07 01:08:52,931 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-07 01:08:52,931 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-07 01:08:52,931 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-07 01:08:52,931 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-07 01:08:52,942 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 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) [2021-12-07 01:08:52,958 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2021-12-07 01:08:52,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:08:52,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:08:52,962 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-07 01:08:52,962 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 01:08:52,962 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-07 01:08:52,963 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 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) [2021-12-07 01:08:52,965 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2021-12-07 01:08:52,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:08:52,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:08:52,966 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-07 01:08:52,966 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 01:08:52,973 INFO L791 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 16#L524true assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 10#L526-3true [2021-12-07 01:08:52,973 INFO L793 eck$LassoCheckResult]: Loop: 10#L526-3true assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet9#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1; 6#L526-2true main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 10#L526-3true [2021-12-07 01:08:52,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:52,977 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-12-07 01:08:52,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:52,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445393530] [2021-12-07 01:08:52,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:52,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:53,075 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:08:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:53,097 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:08:53,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:53,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2021-12-07 01:08:53,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:53,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37579388] [2021-12-07 01:08:53,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:53,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:53,109 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:08:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:53,117 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:08:53,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:53,118 INFO L85 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2021-12-07 01:08:53,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:53,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040601393] [2021-12-07 01:08:53,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:53,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:53,137 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:08:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:53,150 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:08:53,317 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:08:53,317 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:08:53,318 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:08:53,318 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:08:53,318 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 01:08:53,318 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:53,318 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:08:53,318 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:08:53,318 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcasecmp.i_Iteration1_Lasso [2021-12-07 01:08:53,319 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:08:53,319 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:08:53,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:53,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:53,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:53,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:53,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:53,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:53,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:53,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:53,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:53,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:53,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:53,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:53,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:53,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:53,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:53,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:53,538 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:08:53,541 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 01:08:53,542 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:53,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:53,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:53,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-07 01:08:53,545 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:53,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:53,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:53,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:53,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:53,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:53,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:53,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:53,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:53,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:08:53,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:53,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:53,590 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:53,597 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:53,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-07 01:08:53,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:53,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:53,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:53,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:53,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:53,605 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:53,605 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:53,606 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:53,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-07 01:08:53,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:53,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:53,626 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:53,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-07 01:08:53,627 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:53,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:53,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:53,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:53,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:53,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:53,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:53,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:53,636 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:53,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-07 01:08:53,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:53,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:53,664 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:53,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-07 01:08:53,666 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:53,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:53,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:53,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:53,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:53,676 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:08:53,676 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:08:53,679 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:53,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-07 01:08:53,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:53,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:53,706 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:53,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-07 01:08:53,708 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:53,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:53,715 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:53,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:53,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:53,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:53,716 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:53,716 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:53,717 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:53,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-07 01:08:53,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:53,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:53,736 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:53,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-07 01:08:53,737 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:53,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:53,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:53,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:53,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:53,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:53,745 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:53,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:53,746 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:53,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-07 01:08:53,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:53,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:53,765 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:53,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-07 01:08:53,766 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:53,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:53,773 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:53,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:53,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:53,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:53,774 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:53,774 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:53,775 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:53,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-07 01:08:53,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:53,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:53,794 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:53,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-07 01:08:53,795 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:53,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:53,802 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:53,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:53,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:53,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:53,803 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:53,803 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:53,804 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:53,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-07 01:08:53,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:53,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:53,835 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:53,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-07 01:08:53,836 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 [2021-12-07 01:08:53,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:53,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:53,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:53,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:53,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:53,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:53,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:53,846 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:53,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-07 01:08:53,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:53,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:53,865 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:53,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-07 01:08:53,867 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:53,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:53,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:53,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:53,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:53,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:53,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:53,875 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:53,876 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:53,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-07 01:08:53,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:53,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:53,895 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:53,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-07 01:08:53,896 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:53,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:53,903 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:53,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:53,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:53,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:53,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:53,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:53,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:53,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-07 01:08:53,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:53,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:53,924 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:53,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-07 01:08:53,925 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:53,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:53,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:53,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:53,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:53,938 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:08:53,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:08:53,948 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 01:08:53,969 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-12-07 01:08:53,969 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-12-07 01:08:53,970 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:53,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:53,973 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:53,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-07 01:08:53,974 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 01:08:53,982 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-07 01:08:53,982 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 01:08:53,982 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~in_len~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~in_len~0#1 Supporting invariants [] [2021-12-07 01:08:54,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-07 01:08:54,008 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-12-07 01:08:54,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:08:54,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:08:54,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:08:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:08:54,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 01:08:54,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:08:54,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:08:54,083 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-07 01:08:54,084 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:08:54,130 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 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). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 89 transitions. Complement of second has 7 states. [2021-12-07 01:08:54,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-07 01:08:54,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:08:54,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2021-12-07 01:08:54,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-07 01:08:54,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:08:54,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-07 01:08:54,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:08:54,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 3 letters. Loop has 4 letters. [2021-12-07 01:08:54,138 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:08:54,138 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 89 transitions. [2021-12-07 01:08:54,141 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-12-07 01:08:54,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 18 states and 23 transitions. [2021-12-07 01:08:54,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-12-07 01:08:54,145 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-12-07 01:08:54,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2021-12-07 01:08:54,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:08:54,146 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-12-07 01:08:54,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2021-12-07 01:08:54,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-12-07 01:08:54,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:08:54,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-12-07 01:08:54,164 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-12-07 01:08:54,164 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-12-07 01:08:54,164 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-07 01:08:54,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2021-12-07 01:08:54,165 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-12-07 01:08:54,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:08:54,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:08:54,165 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-07 01:08:54,165 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-07 01:08:54,165 INFO L791 eck$LassoCheckResult]: Stem: 142#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 143#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 151#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 148#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 144#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 145#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 137#L534-3 [2021-12-07 01:08:54,165 INFO L793 eck$LassoCheckResult]: Loop: 137#L534-3 assume !!(main_~i~1#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet13#1, main_~out~0#1.base, main_~out~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 139#L534-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 137#L534-3 [2021-12-07 01:08:54,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:54,166 INFO L85 PathProgramCache]: Analyzing trace with hash 889572430, now seen corresponding path program 1 times [2021-12-07 01:08:54,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:54,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635325615] [2021-12-07 01:08:54,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:54,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:54,180 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:08:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:54,193 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:08:54,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:54,194 INFO L85 PathProgramCache]: Analyzing trace with hash 2051, now seen corresponding path program 1 times [2021-12-07 01:08:54,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:54,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585144470] [2021-12-07 01:08:54,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:54,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:54,200 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:08:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:54,205 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:08:54,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:54,205 INFO L85 PathProgramCache]: Analyzing trace with hash 180614416, now seen corresponding path program 1 times [2021-12-07 01:08:54,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:54,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437647918] [2021-12-07 01:08:54,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:54,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:54,220 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:08:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:54,237 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:08:54,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-07 01:08:54,501 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:08:54,501 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:08:54,501 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:08:54,502 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:08:54,502 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 01:08:54,502 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:54,502 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:08:54,502 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:08:54,502 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcasecmp.i_Iteration2_Lasso [2021-12-07 01:08:54,502 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:08:54,502 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:08:54,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:54,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:54,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:54,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:54,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:54,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:54,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:54,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:54,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:54,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:54,752 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:08:54,753 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 01:08:54,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:54,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:54,754 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:54,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-07 01:08:54,756 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:54,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:54,763 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:54,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:54,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:54,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:54,764 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:54,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:54,765 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:54,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-07 01:08:54,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:54,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:54,785 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:54,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-07 01:08:54,786 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:54,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:54,793 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:54,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:54,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:54,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:54,794 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:54,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:54,795 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:54,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-07 01:08:54,813 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:54,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:54,813 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:54,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-07 01:08:54,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:54,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:54,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:54,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:54,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:54,823 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:08:54,823 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:08:54,826 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:54,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-07 01:08:54,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:54,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:54,845 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:54,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-07 01:08:54,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:54,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:54,854 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:54,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:54,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:54,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:54,855 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:54,855 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:54,856 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:54,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-07 01:08:54,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:54,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:54,875 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:54,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-07 01:08:54,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:54,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:54,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:54,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:54,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:54,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:54,884 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:54,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:54,885 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:54,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-07 01:08:54,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:54,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:54,904 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:54,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-07 01:08:54,905 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:54,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:54,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:54,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:54,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:54,915 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:08:54,915 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:08:54,921 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:54,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-07 01:08:54,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:54,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:54,954 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:54,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-07 01:08:54,959 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 [2021-12-07 01:08:54,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:54,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:54,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:54,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:54,967 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:08:54,967 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:08:54,970 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:54,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-07 01:08:54,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:54,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:54,990 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:54,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-07 01:08:54,991 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:54,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:54,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:54,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:54,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:54,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:54,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:54,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:55,000 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:55,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-07 01:08:55,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:55,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:55,020 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:55,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-07 01:08:55,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:55,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:55,028 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:55,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:55,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:55,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:55,029 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:55,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:55,030 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:55,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-07 01:08:55,048 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:55,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:55,049 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:55,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-07 01:08:55,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:55,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:55,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:55,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:55,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:55,063 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:08:55,063 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:08:55,076 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 01:08:55,096 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2021-12-07 01:08:55,096 INFO L444 ModelExtractionUtils]: 19 out of 37 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-12-07 01:08:55,097 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:55,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:55,097 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:55,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-07 01:08:55,103 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 01:08:55,111 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-07 01:08:55,111 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 01:08:55,112 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1, ULTIMATE.start_main_~out_len~0#1) = -1*ULTIMATE.start_main_~i~1#1 + 1*ULTIMATE.start_main_~out_len~0#1 Supporting invariants [] [2021-12-07 01:08:55,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-07 01:08:55,153 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-12-07 01:08:55,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:55,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:08:55,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-07 01:08:55,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:08:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:08:55,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-07 01:08:55,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:08:55,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:08:55,194 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-07 01:08:55,194 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:08:55,207 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 39 transitions. Complement of second has 6 states. [2021-12-07 01:08:55,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-07 01:08:55,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:08:55,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-12-07 01:08:55,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-07 01:08:55,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:08:55,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 2 letters. [2021-12-07 01:08:55,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:08:55,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-07 01:08:55,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:08:55,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 39 transitions. [2021-12-07 01:08:55,210 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-07 01:08:55,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 19 states and 25 transitions. [2021-12-07 01:08:55,211 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-07 01:08:55,211 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-12-07 01:08:55,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2021-12-07 01:08:55,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:08:55,211 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-12-07 01:08:55,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2021-12-07 01:08:55,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-07 01:08:55,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:08:55,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2021-12-07 01:08:55,212 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-12-07 01:08:55,213 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-12-07 01:08:55,213 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-07 01:08:55,213 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 25 transitions. [2021-12-07 01:08:55,213 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-07 01:08:55,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:08:55,213 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:08:55,213 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:08:55,214 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:08:55,214 INFO L791 eck$LassoCheckResult]: Stem: 266#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 267#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 271#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 270#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 264#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 265#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 258#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 259#L534-4 call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcasecmp } true;strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset, strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcasecmp_#res#1;havoc strcasecmp_#t~mem2#1, strcasecmp_#t~mem3#1, strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset, strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset, strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, strcasecmp_~x2~0#1, strcasecmp_~x1~0#1;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset;havoc strcasecmp_~x2~0#1;havoc strcasecmp_~x1~0#1; 274#L511-2 [2021-12-07 01:08:55,214 INFO L793 eck$LassoCheckResult]: Loop: 274#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 275#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 268#L512-2 call strcasecmp_#t~mem3#1 := read~int(strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, 1);strcasecmp_~x1~0#1 := strcasecmp_#t~mem3#1 - 65;havoc strcasecmp_#t~mem3#1; 269#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 276#L513-2 strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset := strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#t~post4#1.base, 1 + strcasecmp_#t~post4#1.offset;havoc strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset;strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset := strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#t~post5#1.base, 1 + strcasecmp_#t~post5#1.offset;havoc strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset; 272#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 273#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 274#L511-2 [2021-12-07 01:08:55,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:55,214 INFO L85 PathProgramCache]: Analyzing trace with hash 180614358, now seen corresponding path program 1 times [2021-12-07 01:08:55,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:55,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562037131] [2021-12-07 01:08:55,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:55,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:55,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:55,228 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:08:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:55,246 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:08:55,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:55,246 INFO L85 PathProgramCache]: Analyzing trace with hash -471896131, now seen corresponding path program 1 times [2021-12-07 01:08:55,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:55,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226857922] [2021-12-07 01:08:55,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:55,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:55,266 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:08:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:55,278 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:08:55,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:55,278 INFO L85 PathProgramCache]: Analyzing trace with hash -723824312, now seen corresponding path program 1 times [2021-12-07 01:08:55,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:55,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053075856] [2021-12-07 01:08:55,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:55,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:08:55,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:08:55,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:08:55,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053075856] [2021-12-07 01:08:55,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053075856] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:08:55,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:08:55,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 01:08:55,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089588573] [2021-12-07 01:08:55,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:08:55,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:08:55,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:08:55,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:08:55,652 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. cyclomatic complexity: 9 Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:08:55,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-12-07 01:08:55,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:08:55,719 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2021-12-07 01:08:55,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 01:08:55,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 45 transitions. [2021-12-07 01:08:55,721 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-07 01:08:55,721 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 45 transitions. [2021-12-07 01:08:55,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-12-07 01:08:55,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-12-07 01:08:55,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 45 transitions. [2021-12-07 01:08:55,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:08:55,722 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2021-12-07 01:08:55,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 45 transitions. [2021-12-07 01:08:55,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 22. [2021-12-07 01:08:55,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:08:55,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2021-12-07 01:08:55,724 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-12-07 01:08:55,724 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-12-07 01:08:55,724 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-07 01:08:55,724 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 28 transitions. [2021-12-07 01:08:55,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-07 01:08:55,725 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:08:55,725 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:08:55,725 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:08:55,725 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:08:55,726 INFO L791 eck$LassoCheckResult]: Stem: 337#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 338#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 346#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 343#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 339#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 340#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 330#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 331#L534-4 call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcasecmp } true;strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset, strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcasecmp_#res#1;havoc strcasecmp_#t~mem2#1, strcasecmp_#t~mem3#1, strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset, strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset, strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, strcasecmp_~x2~0#1, strcasecmp_~x1~0#1;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset;havoc strcasecmp_~x2~0#1;havoc strcasecmp_~x1~0#1; 351#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 350#L512 assume !(strcasecmp_~x2~0#1 % 4294967296 < 26); 341#L512-2 [2021-12-07 01:08:55,726 INFO L793 eck$LassoCheckResult]: Loop: 341#L512-2 call strcasecmp_#t~mem3#1 := read~int(strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, 1);strcasecmp_~x1~0#1 := strcasecmp_#t~mem3#1 - 65;havoc strcasecmp_#t~mem3#1; 342#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 349#L513-2 strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset := strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#t~post4#1.base, 1 + strcasecmp_#t~post4#1.offset;havoc strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset;strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset := strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#t~post5#1.base, 1 + strcasecmp_#t~post5#1.offset;havoc strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset; 344#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 345#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 347#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 348#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 341#L512-2 [2021-12-07 01:08:55,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:55,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1771707771, now seen corresponding path program 1 times [2021-12-07 01:08:55,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:55,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6198894] [2021-12-07 01:08:55,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:55,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:55,738 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:08:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:55,751 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:08:55,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:55,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1652808163, now seen corresponding path program 2 times [2021-12-07 01:08:55,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:55,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635366999] [2021-12-07 01:08:55,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:55,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:55,759 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:08:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:55,767 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:08:55,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:55,768 INFO L85 PathProgramCache]: Analyzing trace with hash -619806935, now seen corresponding path program 1 times [2021-12-07 01:08:55,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:55,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584405680] [2021-12-07 01:08:55,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:55,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:08:55,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:08:55,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:08:55,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584405680] [2021-12-07 01:08:55,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584405680] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:08:55,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91153096] [2021-12-07 01:08:55,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:55,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:08:55,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:55,831 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:08:55,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-12-07 01:08:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:08:55,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-07 01:08:55,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:08:55,918 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 [2021-12-07 01:08:55,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:08:55,979 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:08:55,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91153096] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:08:55,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-07 01:08:55,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 12 [2021-12-07 01:08:55,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699585708] [2021-12-07 01:08:55,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:08:56,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:08:56,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-07 01:08:56,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-12-07 01:08:56,136 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. cyclomatic complexity: 9 Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:08:56,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:08:56,207 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2021-12-07 01:08:56,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:08:56,208 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 49 transitions. [2021-12-07 01:08:56,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-07 01:08:56,210 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 23 states and 28 transitions. [2021-12-07 01:08:56,210 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-12-07 01:08:56,210 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-12-07 01:08:56,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 28 transitions. [2021-12-07 01:08:56,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:08:56,210 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-12-07 01:08:56,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 28 transitions. [2021-12-07 01:08:56,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-12-07 01:08:56,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:08:56,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-12-07 01:08:56,213 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-12-07 01:08:56,213 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-12-07 01:08:56,213 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-07 01:08:56,213 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2021-12-07 01:08:56,213 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-07 01:08:56,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:08:56,213 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:08:56,214 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:08:56,214 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:08:56,214 INFO L791 eck$LassoCheckResult]: Stem: 474#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 475#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 481#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 480#L526-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet9#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1; 472#L526-2 main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 473#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 476#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 477#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 467#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 468#L534-4 call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcasecmp } true;strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset, strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcasecmp_#res#1;havoc strcasecmp_#t~mem2#1, strcasecmp_#t~mem3#1, strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset, strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset, strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, strcasecmp_~x2~0#1, strcasecmp_~x1~0#1;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset;havoc strcasecmp_~x2~0#1;havoc strcasecmp_~x1~0#1; 484#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 485#L512 assume !(strcasecmp_~x2~0#1 % 4294967296 < 26); 478#L512-2 [2021-12-07 01:08:56,214 INFO L793 eck$LassoCheckResult]: Loop: 478#L512-2 call strcasecmp_#t~mem3#1 := read~int(strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, 1);strcasecmp_~x1~0#1 := strcasecmp_#t~mem3#1 - 65;havoc strcasecmp_#t~mem3#1; 479#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 486#L513-2 strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset := strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#t~post4#1.base, 1 + strcasecmp_#t~post4#1.offset;havoc strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset;strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset := strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#t~post5#1.base, 1 + strcasecmp_#t~post5#1.offset;havoc strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset; 482#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 483#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 487#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 488#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 478#L512-2 [2021-12-07 01:08:56,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:56,215 INFO L85 PathProgramCache]: Analyzing trace with hash 826888793, now seen corresponding path program 1 times [2021-12-07 01:08:56,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:56,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287760422] [2021-12-07 01:08:56,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:56,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:56,231 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:08:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:56,254 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:08:56,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:56,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1652808163, now seen corresponding path program 3 times [2021-12-07 01:08:56,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:56,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311534934] [2021-12-07 01:08:56,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:56,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:56,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:56,264 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:08:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:56,273 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:08:56,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:56,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1293831029, now seen corresponding path program 1 times [2021-12-07 01:08:56,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:56,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063547681] [2021-12-07 01:08:56,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:56,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:08:56,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-07 01:08:56,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:08:56,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063547681] [2021-12-07 01:08:56,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063547681] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:08:56,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:08:56,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-07 01:08:56,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312345962] [2021-12-07 01:08:56,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:08:56,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:08:56,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-07 01:08:56,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-07 01:08:56,533 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) [2021-12-07 01:08:56,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:08:56,650 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2021-12-07 01:08:56,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-07 01:08:56,650 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 45 transitions. [2021-12-07 01:08:56,652 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-07 01:08:56,652 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 36 states and 43 transitions. [2021-12-07 01:08:56,652 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-12-07 01:08:56,653 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-12-07 01:08:56,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 43 transitions. [2021-12-07 01:08:56,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:08:56,653 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 43 transitions. [2021-12-07 01:08:56,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 43 transitions. [2021-12-07 01:08:56,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 24. [2021-12-07 01:08:56,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:08:56,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2021-12-07 01:08:56,656 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-12-07 01:08:56,656 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-12-07 01:08:56,656 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-07 01:08:56,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2021-12-07 01:08:56,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-07 01:08:56,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:08:56,656 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:08:56,657 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:08:56,657 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:08:56,657 INFO L791 eck$LassoCheckResult]: Stem: 558#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 559#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 567#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 564#L526-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet9#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1; 556#L526-2 main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 557#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 560#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 561#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 551#L534-3 assume !!(main_~i~1#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet13#1, main_~out~0#1.base, main_~out~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 553#L534-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 554#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 555#L534-4 call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcasecmp } true;strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset, strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcasecmp_#res#1;havoc strcasecmp_#t~mem2#1, strcasecmp_#t~mem3#1, strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset, strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset, strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, strcasecmp_~x2~0#1, strcasecmp_~x1~0#1;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset;havoc strcasecmp_~x2~0#1;havoc strcasecmp_~x1~0#1; 573#L511-2 [2021-12-07 01:08:56,657 INFO L793 eck$LassoCheckResult]: Loop: 573#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 574#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 562#L512-2 call strcasecmp_#t~mem3#1 := read~int(strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, 1);strcasecmp_~x1~0#1 := strcasecmp_#t~mem3#1 - 65;havoc strcasecmp_#t~mem3#1; 563#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 570#L513-2 strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset := strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#t~post4#1.base, 1 + strcasecmp_#t~post4#1.offset;havoc strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset;strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset := strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#t~post5#1.base, 1 + strcasecmp_#t~post5#1.offset;havoc strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset; 565#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 566#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 573#L511-2 [2021-12-07 01:08:56,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:56,657 INFO L85 PathProgramCache]: Analyzing trace with hash 826943990, now seen corresponding path program 1 times [2021-12-07 01:08:56,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:56,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172971114] [2021-12-07 01:08:56,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:56,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:56,669 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:08:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:56,682 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:08:56,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:56,682 INFO L85 PathProgramCache]: Analyzing trace with hash -471896131, now seen corresponding path program 4 times [2021-12-07 01:08:56,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:56,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879306739] [2021-12-07 01:08:56,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:56,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:56,689 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:08:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:56,696 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:08:56,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:56,696 INFO L85 PathProgramCache]: Analyzing trace with hash 100997160, now seen corresponding path program 1 times [2021-12-07 01:08:56,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:56,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31485264] [2021-12-07 01:08:56,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:56,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:56,714 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:08:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:56,735 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:08:57,581 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:08:57,581 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:08:57,581 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:08:57,581 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:08:57,581 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 01:08:57,581 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:57,581 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:08:57,581 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:08:57,581 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcasecmp.i_Iteration6_Lasso [2021-12-07 01:08:57,581 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:08:57,581 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:08:57,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:57,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:57,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:57,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:57,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:57,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:57,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:57,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:57,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:57,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:57,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:57,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:57,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:57,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:57,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:57,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:57,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:57,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:08:58,386 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:08:58,386 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 01:08:58,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:58,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:58,387 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:58,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-07 01:08:58,423 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:58,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:58,430 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:58,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:58,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:58,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:58,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:58,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:58,432 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:58,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-07 01:08:58,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:58,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:58,451 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:58,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-07 01:08:58,453 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:58,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:58,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:58,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:58,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:58,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:58,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:58,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:58,462 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:58,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-07 01:08:58,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:58,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:58,481 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:58,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-07 01:08:58,482 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:58,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:58,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:58,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:58,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:58,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:58,489 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:58,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:58,490 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:58,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-07 01:08:58,508 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:58,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:58,509 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:58,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-07 01:08:58,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:58,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:58,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:58,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:58,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:58,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:08:58,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:08:58,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:58,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-07 01:08:58,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:58,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:58,540 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:58,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-07 01:08:58,541 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:58,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:58,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:58,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:58,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:58,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:58,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:58,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:58,550 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:58,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-12-07 01:08:58,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:58,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:58,569 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:58,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-07 01:08:58,571 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:58,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:58,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:58,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:58,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:58,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:58,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:58,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:58,579 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:58,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-07 01:08:58,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:58,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:58,598 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:58,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-07 01:08:58,599 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:58,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:58,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:58,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:58,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:58,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:58,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:58,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:58,608 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:58,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-12-07 01:08:58,626 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:58,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:58,626 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:58,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-07 01:08:58,628 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:58,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:58,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:58,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:58,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:58,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:58,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:58,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:58,638 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:58,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-07 01:08:58,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:58,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:58,669 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:58,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-07 01:08:58,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:58,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:58,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:58,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:58,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:58,678 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:08:58,678 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:08:58,680 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:58,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-12-07 01:08:58,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:58,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:58,700 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:58,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-07 01:08:58,701 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:58,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:58,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:08:58,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:58,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:58,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:58,708 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:08:58,708 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:08:58,709 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:58,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-12-07 01:08:58,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:58,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:58,728 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:58,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-07 01:08:58,729 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:58,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:58,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:58,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:58,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:58,738 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:08:58,738 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:08:58,741 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:58,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-12-07 01:08:58,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:58,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:58,759 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:58,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-07 01:08:58,761 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:58,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:58,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:58,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:58,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:58,772 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:08:58,773 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:08:58,783 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:08:58,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-12-07 01:08:58,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:58,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:58,802 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:58,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-07 01:08:58,803 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:08:58,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:08:58,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:08:58,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:08:58,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:08:58,817 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:08:58,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:08:58,835 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 01:08:58,872 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-12-07 01:08:58,872 INFO L444 ModelExtractionUtils]: 15 out of 52 variables were initially zero. Simplification set additionally 30 variables to zero. [2021-12-07 01:08:58,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:08:58,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:58,873 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:08:58,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-07 01:08:58,874 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 01:08:58,882 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-07 01:08:58,882 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 01:08:58,882 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strcasecmp_~s1#1.offset, ULTIMATE.start_main_~in_len~0#1) = -1*ULTIMATE.start_strcasecmp_~s1#1.offset + 1*ULTIMATE.start_main_~in_len~0#1 Supporting invariants [-1*ULTIMATE.start_main_~in~0#1.offset + 1*ULTIMATE.start_main_~out~0#1.offset - 1*v_rep(select #length ULTIMATE.start_main_#t~malloc11#1.base)_2 + 1*ULTIMATE.start_main_~out_len~0#1 >= 0] [2021-12-07 01:08:58,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-12-07 01:08:58,972 INFO L297 tatePredicateManager]: 19 out of 23 supporting invariants were superfluous and have been removed [2021-12-07 01:08:58,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:08:59,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 37 conjunts are in the unsatisfiable core [2021-12-07 01:08:59,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:08:59,082 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 [2021-12-07 01:08:59,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-12-07 01:08:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:08:59,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-07 01:08:59,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:08:59,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:08:59,317 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.9 stem predicates 3 loop predicates [2021-12-07 01:08:59,317 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8 Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 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) [2021-12-07 01:08:59,517 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8. Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 55 states and 71 transitions. Complement of second has 16 states. [2021-12-07 01:08:59,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 9 stem states 2 non-accepting loop states 2 accepting loop states [2021-12-07 01:08:59,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 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) [2021-12-07 01:08:59,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 41 transitions. [2021-12-07 01:08:59,518 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 41 transitions. Stem has 12 letters. Loop has 7 letters. [2021-12-07 01:08:59,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:08:59,518 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 41 transitions. Stem has 19 letters. Loop has 7 letters. [2021-12-07 01:08:59,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:08:59,518 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 41 transitions. Stem has 12 letters. Loop has 14 letters. [2021-12-07 01:08:59,519 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:08:59,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 71 transitions. [2021-12-07 01:08:59,520 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-07 01:08:59,521 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 39 states and 48 transitions. [2021-12-07 01:08:59,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-12-07 01:08:59,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-12-07 01:08:59,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 48 transitions. [2021-12-07 01:08:59,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:08:59,521 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2021-12-07 01:08:59,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 48 transitions. [2021-12-07 01:08:59,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2021-12-07 01:08:59,523 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) [2021-12-07 01:08:59,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-12-07 01:08:59,524 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-12-07 01:08:59,524 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-12-07 01:08:59,524 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-07 01:08:59,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 38 transitions. [2021-12-07 01:08:59,524 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-07 01:08:59,524 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:08:59,524 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:08:59,525 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:08:59,525 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:08:59,525 INFO L791 eck$LassoCheckResult]: Stem: 851#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 852#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 859#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 855#L526-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet9#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1; 856#L526-2 main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 857#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 858#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 862#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 863#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 844#L534-4 call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcasecmp } true;strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset, strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcasecmp_#res#1;havoc strcasecmp_#t~mem2#1, strcasecmp_#t~mem3#1, strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset, strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset, strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, strcasecmp_~x2~0#1, strcasecmp_~x1~0#1;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset;havoc strcasecmp_~x2~0#1;havoc strcasecmp_~x1~0#1; 865#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 866#L512 assume !(strcasecmp_~x2~0#1 % 4294967296 < 26); 853#L512-2 call strcasecmp_#t~mem3#1 := read~int(strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, 1);strcasecmp_~x1~0#1 := strcasecmp_#t~mem3#1 - 65;havoc strcasecmp_#t~mem3#1; 854#L513 assume !(strcasecmp_~x1~0#1 % 4294967296 < 26); 867#L513-2 [2021-12-07 01:08:59,525 INFO L793 eck$LassoCheckResult]: Loop: 867#L513-2 strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset := strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#t~post4#1.base, 1 + strcasecmp_#t~post4#1.offset;havoc strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset;strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset := strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#t~post5#1.base, 1 + strcasecmp_#t~post5#1.offset;havoc strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset; 860#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 861#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 868#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 871#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 870#L512-2 call strcasecmp_#t~mem3#1 := read~int(strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, 1);strcasecmp_~x1~0#1 := strcasecmp_#t~mem3#1 - 65;havoc strcasecmp_#t~mem3#1; 869#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 867#L513-2 [2021-12-07 01:08:59,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:59,525 INFO L85 PathProgramCache]: Analyzing trace with hash 71182110, now seen corresponding path program 1 times [2021-12-07 01:08:59,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:59,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301566731] [2021-12-07 01:08:59,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:59,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:59,535 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:08:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:59,545 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:08:59,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:59,546 INFO L85 PathProgramCache]: Analyzing trace with hash -458289079, now seen corresponding path program 5 times [2021-12-07 01:08:59,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:59,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063878829] [2021-12-07 01:08:59,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:59,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:59,549 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:08:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:08:59,553 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:08:59,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:08:59,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1359552140, now seen corresponding path program 1 times [2021-12-07 01:08:59,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:08:59,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728103200] [2021-12-07 01:08:59,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:59,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:08:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:08:59,694 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:08:59,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:08:59,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728103200] [2021-12-07 01:08:59,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728103200] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:08:59,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652890257] [2021-12-07 01:08:59,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:08:59,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:08:59,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:08:59,696 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:08:59,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-12-07 01:08:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:08:59,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 31 conjunts are in the unsatisfiable core [2021-12-07 01:08:59,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:08:59,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-12-07 01:08:59,826 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-07 01:08:59,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-07 01:08:59,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2021-12-07 01:08:59,978 INFO L354 Elim1Store]: treesize reduction 8, result has 27.3 percent of original size [2021-12-07 01:08:59,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 12 [2021-12-07 01:08:59,980 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:08:59,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:09:00,045 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_167 (Array Int Int))) (<= 26 (mod (+ 4294967231 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~out~0#1.base| v_ArrVal_167) |c_ULTIMATE.start_main_~in~0#1.base|) (+ |c_ULTIMATE.start_main_~in~0#1.offset| 1))) 4294967296))) is different from false [2021-12-07 01:09:00,064 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~malloc11#1.base_77| Int) (v_ArrVal_167 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc11#1.base_77|) 0)) (<= 26 (mod (+ 4294967231 (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc11#1.base_77| v_ArrVal_167) |c_ULTIMATE.start_main_~in~0#1.base|) (+ |c_ULTIMATE.start_main_~in~0#1.offset| 1))) 4294967296)))) is different from false [2021-12-07 01:09:00,077 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:09:00,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2021-12-07 01:09:00,086 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-07 01:09:00,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 45 [2021-12-07 01:09:00,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-12-07 01:09:00,224 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-12-07 01:09:00,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12 [2021-12-07 01:09:00,236 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:09:00,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652890257] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:09:00,236 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:09:00,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2021-12-07 01:09:00,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672703268] [2021-12-07 01:09:00,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:09:00,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:09:00,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-07 01:09:00,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=515, Unknown=2, NotChecked=94, Total=702 [2021-12-07 01:09:00,364 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. cyclomatic complexity: 10 Second operand has 27 states, 26 states have (on average 2.1923076923076925) internal successors, (57), 27 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) [2021-12-07 01:09:00,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:09:00,497 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2021-12-07 01:09:00,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-07 01:09:00,498 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 57 transitions. [2021-12-07 01:09:00,498 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-07 01:09:00,499 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 34 states and 41 transitions. [2021-12-07 01:09:00,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2021-12-07 01:09:00,499 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-12-07 01:09:00,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 41 transitions. [2021-12-07 01:09:00,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:09:00,499 INFO L681 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-12-07 01:09:00,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 41 transitions. [2021-12-07 01:09:00,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2021-12-07 01:09:00,501 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) [2021-12-07 01:09:00,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2021-12-07 01:09:00,501 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-12-07 01:09:00,501 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-12-07 01:09:00,501 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-07 01:09:00,501 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2021-12-07 01:09:00,502 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-07 01:09:00,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:09:00,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:09:00,502 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:09:00,502 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:09:00,502 INFO L791 eck$LassoCheckResult]: Stem: 1091#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1092#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 1100#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 1097#L526-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet9#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1; 1098#L526-2 main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 1115#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 1093#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 1094#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 1085#L534-3 assume !!(main_~i~1#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet13#1, main_~out~0#1.base, main_~out~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 1086#L534-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 1087#L534-3 assume !!(main_~i~1#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet13#1, main_~out~0#1.base, main_~out~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 1088#L534-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 1103#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 1108#L534-4 call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcasecmp } true;strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset, strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcasecmp_#res#1;havoc strcasecmp_#t~mem2#1, strcasecmp_#t~mem3#1, strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset, strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset, strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, strcasecmp_~x2~0#1, strcasecmp_~x1~0#1;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset;havoc strcasecmp_~x2~0#1;havoc strcasecmp_~x1~0#1; 1104#L511-2 [2021-12-07 01:09:00,502 INFO L793 eck$LassoCheckResult]: Loop: 1104#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 1105#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 1095#L512-2 call strcasecmp_#t~mem3#1 := read~int(strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, 1);strcasecmp_~x1~0#1 := strcasecmp_#t~mem3#1 - 65;havoc strcasecmp_#t~mem3#1; 1096#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 1106#L513-2 strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset := strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#t~post4#1.base, 1 + strcasecmp_#t~post4#1.offset;havoc strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset;strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset := strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#t~post5#1.base, 1 + strcasecmp_#t~post5#1.offset;havoc strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset; 1101#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 1102#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 1104#L511-2 [2021-12-07 01:09:00,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:09:00,503 INFO L85 PathProgramCache]: Analyzing trace with hash 124281400, now seen corresponding path program 2 times [2021-12-07 01:09:00,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:09:00,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620774477] [2021-12-07 01:09:00,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:09:00,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:09:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:09:00,545 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:09:00,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:09:00,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620774477] [2021-12-07 01:09:00,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620774477] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-07 01:09:00,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095461018] [2021-12-07 01:09:00,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-07 01:09:00,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-07 01:09:00,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:00,546 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-07 01:09:00,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-12-07 01:09:00,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-07 01:09:00,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-07 01:09:00,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-07 01:09:00,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:09:00,609 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 [2021-12-07 01:09:00,653 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:09:00,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-07 01:09:00,697 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:09:00,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095461018] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-07 01:09:00,697 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-07 01:09:00,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2021-12-07 01:09:00,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148198167] [2021-12-07 01:09:00,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-07 01:09:00,698 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-07 01:09:00,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:09:00,698 INFO L85 PathProgramCache]: Analyzing trace with hash -471896131, now seen corresponding path program 6 times [2021-12-07 01:09:00,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:09:00,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716483132] [2021-12-07 01:09:00,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:09:00,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:09:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:09:00,703 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:09:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:09:00,708 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:09:00,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:09:00,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-07 01:09:00,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-12-07 01:09:00,868 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. cyclomatic complexity: 9 Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:09:00,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:09:00,953 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2021-12-07 01:09:00,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-07 01:09:00,954 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 41 transitions. [2021-12-07 01:09:00,955 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-07 01:09:00,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 27 states and 32 transitions. [2021-12-07 01:09:00,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-12-07 01:09:00,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-12-07 01:09:00,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 32 transitions. [2021-12-07 01:09:00,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:09:00,956 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2021-12-07 01:09:00,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 32 transitions. [2021-12-07 01:09:00,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-12-07 01:09:00,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:09:00,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2021-12-07 01:09:00,958 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-12-07 01:09:00,958 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-12-07 01:09:00,958 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-12-07 01:09:00,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 31 transitions. [2021-12-07 01:09:00,958 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-07 01:09:00,959 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 01:09:00,959 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 01:09:00,959 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:09:00,959 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:09:00,959 INFO L791 eck$LassoCheckResult]: Stem: 1264#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1265#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 1272#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 1268#L526-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet9#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1; 1260#L526-2 main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 1261#L526-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet9#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1; 1269#L526-2 main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 1277#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 1262#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 1263#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 1255#L534-3 assume !!(main_~i~1#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet13#1, main_~out~0#1.base, main_~out~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 1257#L534-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 1258#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 1259#L534-4 call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcasecmp } true;strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset, strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcasecmp_#res#1;havoc strcasecmp_#t~mem2#1, strcasecmp_#t~mem3#1, strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset, strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset, strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, strcasecmp_~x2~0#1, strcasecmp_~x1~0#1;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset;havoc strcasecmp_~x2~0#1;havoc strcasecmp_~x1~0#1; 1276#L511-2 [2021-12-07 01:09:00,959 INFO L793 eck$LassoCheckResult]: Loop: 1276#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 1280#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 1279#L512-2 call strcasecmp_#t~mem3#1 := read~int(strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, 1);strcasecmp_~x1~0#1 := strcasecmp_#t~mem3#1 - 65;havoc strcasecmp_#t~mem3#1; 1278#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 1275#L513-2 strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset := strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#t~post4#1.base, 1 + strcasecmp_#t~post4#1.offset;havoc strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset;strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset := strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#t~post5#1.base, 1 + strcasecmp_#t~post5#1.offset;havoc strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset; 1270#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 1271#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 1276#L511-2 [2021-12-07 01:09:00,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:09:00,960 INFO L85 PathProgramCache]: Analyzing trace with hash -905994412, now seen corresponding path program 3 times [2021-12-07 01:09:00,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:09:00,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425292475] [2021-12-07 01:09:00,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:09:00,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:09:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:09:00,971 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:09:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:09:00,981 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:09:00,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:09:00,982 INFO L85 PathProgramCache]: Analyzing trace with hash -471896131, now seen corresponding path program 7 times [2021-12-07 01:09:00,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:09:00,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327543021] [2021-12-07 01:09:00,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:09:00,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:09:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:09:00,987 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:09:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:09:00,994 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:09:00,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:09:00,994 INFO L85 PathProgramCache]: Analyzing trace with hash 903904522, now seen corresponding path program 2 times [2021-12-07 01:09:00,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:09:00,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419385641] [2021-12-07 01:09:00,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:09:00,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:09:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:09:01,012 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:09:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:09:01,030 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:09:02,145 INFO L210 LassoAnalysis]: Preferences: [2021-12-07 01:09:02,145 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-07 01:09:02,145 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-07 01:09:02,145 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-07 01:09:02,145 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-07 01:09:02,145 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:02,145 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-07 01:09:02,145 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-07 01:09:02,145 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcasecmp.i_Iteration9_Lasso [2021-12-07 01:09:02,145 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-07 01:09:02,145 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-07 01:09:02,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-07 01:09:02,907 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-07 01:09:02,907 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-07 01:09:02,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:02,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:02,908 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:02,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-07 01:09:02,909 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:02,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:02,916 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:09:02,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:02,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:02,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:02,917 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:09:02,917 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:09:02,918 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:02,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-12-07 01:09:02,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:02,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:02,936 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:02,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-07 01:09:02,937 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:02,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:02,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:09:02,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:02,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:02,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:02,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:09:02,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:09:02,946 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:02,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-12-07 01:09:02,964 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:02,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:02,965 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:02,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-12-07 01:09:02,966 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:02,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:02,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:02,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:02,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:02,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:09:02,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:09:02,976 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:02,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-12-07 01:09:02,994 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:02,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:02,995 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:02,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-12-07 01:09:02,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:09:03,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:09:03,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:09:03,004 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-12-07 01:09:03,022 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,022 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-12-07 01:09:03,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,032 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:09:03,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,033 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:09:03,033 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:09:03,034 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-12-07 01:09:03,052 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,053 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-12-07 01:09:03,054 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,061 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:09:03,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:09:03,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:09:03,062 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-12-07 01:09:03,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,080 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-12-07 01:09:03,081 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 [2021-12-07 01:09:03,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,089 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:09:03,090 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:09:03,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-12-07 01:09:03,110 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,110 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-12-07 01:09:03,112 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:09:03,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,120 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:09:03,120 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:09:03,121 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-12-07 01:09:03,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,139 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-12-07 01:09:03,140 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,147 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:09:03,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,148 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:09:03,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:09:03,149 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-12-07 01:09:03,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,167 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-12-07 01:09:03,173 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:09:03,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:09:03,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:09:03,181 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-12-07 01:09:03,199 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,200 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-12-07 01:09:03,201 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:09:03,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:09:03,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:09:03,210 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-12-07 01:09:03,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,228 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-12-07 01:09:03,231 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:09:03,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,238 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:09:03,238 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:09:03,239 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-12-07 01:09:03,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,258 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-12-07 01:09:03,259 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 [2021-12-07 01:09:03,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,266 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:09:03,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:09:03,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:09:03,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-12-07 01:09:03,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,286 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-12-07 01:09:03,287 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,294 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:09:03,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,294 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:09:03,294 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:09:03,295 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-12-07 01:09:03,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,314 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-12-07 01:09:03,315 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:09:03,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:09:03,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:09:03,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-12-07 01:09:03,341 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,342 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-12-07 01:09:03,344 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-07 01:09:03,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,352 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-07 01:09:03,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-07 01:09:03,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-12-07 01:09:03,371 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,371 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-12-07 01:09:03,373 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,381 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:09:03,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:09:03,383 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-12-07 01:09:03,401 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,401 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-12-07 01:09:03,403 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,410 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:09:03,410 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:09:03,412 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-12-07 01:09:03,430 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,431 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-12-07 01:09:03,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:09:03,442 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:09:03,444 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-12-07 01:09:03,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,463 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-12-07 01:09:03,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,473 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:09:03,473 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:09:03,477 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-12-07 01:09:03,494 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,495 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-12-07 01:09:03,497 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,508 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:09:03,508 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:09:03,517 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-12-07 01:09:03,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,536 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-12-07 01:09:03,537 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,548 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:09:03,549 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:09:03,557 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-12-07 01:09:03,575 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,575 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-12-07 01:09:03,577 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-07 01:09:03,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,585 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:09:03,585 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:09:03,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-12-07 01:09:03,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,606 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-12-07 01:09:03,607 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 [2021-12-07 01:09:03,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,615 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:09:03,615 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:09:03,617 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-07 01:09:03,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-12-07 01:09:03,635 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,636 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-12-07 01:09:03,637 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 [2021-12-07 01:09:03,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-07 01:09:03,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-07 01:09:03,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-07 01:09:03,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-07 01:09:03,651 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-07 01:09:03,651 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-07 01:09:03,668 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-07 01:09:03,685 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-12-07 01:09:03,685 INFO L444 ModelExtractionUtils]: 33 out of 49 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-12-07 01:09:03,685 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 01:09:03,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:09:03,686 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 01:09:03,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-12-07 01:09:03,688 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-07 01:09:03,695 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-07 01:09:03,695 INFO L513 LassoAnalysis]: Proved termination. [2021-12-07 01:09:03,695 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strcasecmp_~s1#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc11#1.base)_3) = -1*ULTIMATE.start_strcasecmp_~s1#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc11#1.base)_3 Supporting invariants [] [2021-12-07 01:09:03,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-12-07 01:09:03,782 INFO L297 tatePredicateManager]: 24 out of 26 supporting invariants were superfluous and have been removed [2021-12-07 01:09:03,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:09:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:09:03,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-07 01:09:03,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:09:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:09:03,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-07 01:09:03,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:09:03,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:09:03,909 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2021-12-07 01:09:03,909 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 31 transitions. cyclomatic complexity: 8 Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:09:03,931 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 31 transitions. cyclomatic complexity: 8. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 47 transitions. Complement of second has 8 states. [2021-12-07 01:09:03,931 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 [2021-12-07 01:09:03,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:09:03,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2021-12-07 01:09:03,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 14 letters. Loop has 7 letters. [2021-12-07 01:09:03,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:09:03,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 21 letters. Loop has 7 letters. [2021-12-07 01:09:03,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:09:03,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 14 letters. Loop has 14 letters. [2021-12-07 01:09:03,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-07 01:09:03,933 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 47 transitions. [2021-12-07 01:09:03,933 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-07 01:09:03,933 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 0 states and 0 transitions. [2021-12-07 01:09:03,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-07 01:09:03,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-07 01:09:03,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-07 01:09:03,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 01:09:03,933 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 01:09:03,933 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 01:09:03,934 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 01:09:03,934 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-12-07 01:09:03,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-07 01:09:03,938 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-07 01:09:03,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-07 01:09:03,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 01:09:03 BoogieIcfgContainer [2021-12-07 01:09:03,943 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-07 01:09:03,943 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 01:09:03,943 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 01:09:03,943 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 01:09:03,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:08:52" (3/4) ... [2021-12-07 01:09:03,945 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-07 01:09:03,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 01:09:03,946 INFO L158 Benchmark]: Toolchain (without parser) took 11626.05ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 79.5MB in the beginning and 90.3MB in the end (delta: -10.8MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2021-12-07 01:09:03,946 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:09:03,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.95ms. Allocated memory is still 102.8MB. Free memory was 79.2MB in the beginning and 63.7MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-07 01:09:03,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.66ms. Allocated memory is still 102.8MB. Free memory was 63.7MB in the beginning and 61.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:09:03,947 INFO L158 Benchmark]: Boogie Preprocessor took 19.55ms. Allocated memory is still 102.8MB. Free memory was 61.6MB in the beginning and 60.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:09:03,947 INFO L158 Benchmark]: RCFGBuilder took 254.54ms. Allocated memory is still 102.8MB. Free memory was 60.3MB in the beginning and 49.0MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-07 01:09:03,948 INFO L158 Benchmark]: BuchiAutomizer took 11053.97ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 49.0MB in the beginning and 90.3MB in the end (delta: -41.3MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2021-12-07 01:09:03,948 INFO L158 Benchmark]: Witness Printer took 2.29ms. Allocated memory is still 125.8MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:09:03,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.95ms. Allocated memory is still 102.8MB. Free memory was 79.2MB in the beginning and 63.7MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.66ms. Allocated memory is still 102.8MB. Free memory was 63.7MB in the beginning and 61.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.55ms. Allocated memory is still 102.8MB. Free memory was 61.6MB in the beginning and 60.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 254.54ms. Allocated memory is still 102.8MB. Free memory was 60.3MB in the beginning and 49.0MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 11053.97ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 49.0MB in the beginning and 90.3MB in the end (delta: -41.3MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Witness Printer took 2.29ms. Allocated memory is still 125.8MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 9 terminating modules (5 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + in_len and consists of 5 locations. One deterministic module has affine ranking function out_len + -1 * i and consists of 4 locations. One deterministic module has affine ranking function in_len + -1 * s1 and consists of 13 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (in_len)] + -1 * s1 and consists of 6 locations. 5 modules have a trivial ranking function, the largest among these consists of 27 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.0s and 10 iterations. TraceHistogramMax:2. Analysis of lassos took 9.5s. Construction of modules took 0.2s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 9. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 39 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 31 states and ocurred in iteration 6. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 313 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 311 mSDsluCounter, 572 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 138 IncrementalHoareTripleChecker+Unchecked, 441 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 456 IncrementalHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 131 mSDtfsCounter, 456 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc4 concLT0 SILN0 SILU1 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital187 mio100 ax100 hnf99 lsp96 ukn90 mio100 lsp53 div116 bol100 ite100 ukn100 eq162 hnf88 smp95 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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! [2021-12-07 01:09:03,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-12-07 01:09:04,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2021-12-07 01:09:04,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2021-12-07 01:09:04,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2021-12-07 01:09:04,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a07a20-de0f-490d-8102-14e09a458277/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE