./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 32bit --witnessprinter.graph.data.programhash b06b08d501323de811576605780ed72bdf24037e477195316df25396abb6c35b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 20:29:12,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 20:29:12,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 20:29:12,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 20:29:12,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 20:29:12,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 20:29:12,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 20:29:12,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 20:29:12,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 20:29:12,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 20:29:12,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 20:29:12,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 20:29:12,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 20:29:12,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 20:29:12,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 20:29:12,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 20:29:12,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 20:29:12,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 20:29:12,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 20:29:12,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 20:29:12,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 20:29:12,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 20:29:12,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 20:29:12,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 20:29:12,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 20:29:12,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 20:29:12,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 20:29:12,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 20:29:12,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 20:29:12,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 20:29:12,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 20:29:12,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 20:29:12,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 20:29:12,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 20:29:12,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 20:29:12,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 20:29:12,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 20:29:12,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 20:29:12,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 20:29:12,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 20:29:12,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 20:29:12,503 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-19 20:29:12,523 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 20:29:12,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 20:29:12,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 20:29:12,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 20:29:12,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 20:29:12,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 20:29:12,525 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 20:29:12,526 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 20:29:12,526 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 20:29:12,526 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 20:29:12,526 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 20:29:12,527 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 20:29:12,527 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 20:29:12,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 20:29:12,527 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 20:29:12,527 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 20:29:12,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 20:29:12,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 20:29:12,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 20:29:12,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 20:29:12,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 20:29:12,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 20:29:12,528 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 20:29:12,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 20:29:12,528 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 20:29:12,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 20:29:12,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 20:29:12,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 20:29:12,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 20:29:12,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 20:29:12,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 20:29:12,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 20:29:12,530 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 20:29:12,530 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b06b08d501323de811576605780ed72bdf24037e477195316df25396abb6c35b [2021-12-19 20:29:12,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 20:29:12,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 20:29:12,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 20:29:12,747 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 20:29:12,747 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 20:29:12,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.i [2021-12-19 20:29:12,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c2bf0a52/4fe5c2f78994440bac3ea059178c0457/FLAG305f28ceb [2021-12-19 20:29:13,246 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 20:29:13,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.i [2021-12-19 20:29:13,264 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c2bf0a52/4fe5c2f78994440bac3ea059178c0457/FLAG305f28ceb [2021-12-19 20:29:13,276 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c2bf0a52/4fe5c2f78994440bac3ea059178c0457 [2021-12-19 20:29:13,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 20:29:13,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 20:29:13,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 20:29:13,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 20:29:13,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 20:29:13,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 08:29:13" (1/1) ... [2021-12-19 20:29:13,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18680bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:29:13, skipping insertion in model container [2021-12-19 20:29:13,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 08:29:13" (1/1) ... [2021-12-19 20:29:13,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 20:29:13,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 20:29:13,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 20:29:13,572 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 20:29:13,600 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 20:29:13,615 INFO L208 MainTranslator]: Completed translation [2021-12-19 20:29:13,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:29:13 WrapperNode [2021-12-19 20:29:13,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 20:29:13,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 20:29:13,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 20:29:13,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 20:29:13,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:29:13" (1/1) ... [2021-12-19 20:29:13,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:29:13" (1/1) ... [2021-12-19 20:29:13,652 INFO L137 Inliner]: procedures = 117, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2021-12-19 20:29:13,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 20:29:13,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 20:29:13,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 20:29:13,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 20:29:13,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:29:13" (1/1) ... [2021-12-19 20:29:13,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:29:13" (1/1) ... [2021-12-19 20:29:13,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:29:13" (1/1) ... [2021-12-19 20:29:13,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:29:13" (1/1) ... [2021-12-19 20:29:13,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:29:13" (1/1) ... [2021-12-19 20:29:13,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:29:13" (1/1) ... [2021-12-19 20:29:13,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:29:13" (1/1) ... [2021-12-19 20:29:13,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 20:29:13,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 20:29:13,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 20:29:13,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 20:29:13,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:29:13" (1/1) ... [2021-12-19 20:29:13,697 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:13,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:13,722 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:13,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-19 20:29:13,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-19 20:29:13,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-19 20:29:13,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-19 20:29:13,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-19 20:29:13,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 20:29:13,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 20:29:13,838 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 20:29:13,839 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 20:29:13,945 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 20:29:13,948 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 20:29:13,949 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-19 20:29:13,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 08:29:13 BoogieIcfgContainer [2021-12-19 20:29:13,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 20:29:13,950 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 20:29:13,950 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 20:29:13,953 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 20:29:13,953 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 20:29:13,953 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 08:29:13" (1/3) ... [2021-12-19 20:29:13,954 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f0a76ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 08:29:13, skipping insertion in model container [2021-12-19 20:29:13,954 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 20:29:13,954 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:29:13" (2/3) ... [2021-12-19 20:29:13,954 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f0a76ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 08:29:13, skipping insertion in model container [2021-12-19 20:29:13,954 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 20:29:13,954 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 08:29:13" (3/3) ... [2021-12-19 20:29:13,955 INFO L388 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrnlen-alloca-1.i [2021-12-19 20:29:13,981 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 20:29:13,982 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 20:29:13,982 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 20:29:13,982 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 20:29:13,982 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 20:29:13,982 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 20:29:13,982 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 20:29:13,983 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 20:29:13,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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) [2021-12-19 20:29:14,002 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-19 20:29:14,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 20:29:14,002 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 20:29:14,006 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-19 20:29:14,006 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-19 20:29:14,006 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 20:29:14,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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) [2021-12-19 20:29:14,007 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-19 20:29:14,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 20:29:14,007 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 20:29:14,008 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-19 20:29:14,008 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-19 20:29:14,012 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~0#1, main_#t~ret11#1, main_~length1~0#1, main_~n~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;main_~length1~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 13#L524true assume !(main_~length1~0#1 < 1); 16#L524-2true assume !(main_~n~0#1 < 1); 6#L527-1true call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0; 15#L532-3true [2021-12-19 20:29:14,012 INFO L793 eck$LassoCheckResult]: Loop: 15#L532-3true assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet10#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet10#1; 7#L532-2true main_#t~post9#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 15#L532-3true [2021-12-19 20:29:14,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 20:29:14,016 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-12-19 20:29:14,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 20:29:14,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194546177] [2021-12-19 20:29:14,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 20:29:14,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 20:29:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 20:29:14,096 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 20:29:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 20:29:14,124 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 20:29:14,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 20:29:14,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2021-12-19 20:29:14,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 20:29:14,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419733702] [2021-12-19 20:29:14,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 20:29:14,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 20:29:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 20:29:14,146 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 20:29:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 20:29:14,159 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 20:29:14,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 20:29:14,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2021-12-19 20:29:14,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 20:29:14,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752115645] [2021-12-19 20:29:14,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 20:29:14,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 20:29:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 20:29:14,180 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 20:29:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 20:29:14,198 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 20:29:14,462 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 20:29:14,462 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 20:29:14,462 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 20:29:14,462 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 20:29:14,462 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 20:29:14,463 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:14,463 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 20:29:14,463 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 20:29:14,463 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrnlen-alloca-1.i_Iteration1_Lasso [2021-12-19 20:29:14,463 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 20:29:14,463 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 20:29:14,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:14,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:14,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:14,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:14,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:14,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:14,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:14,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:14,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:14,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:14,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:14,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:14,713 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 20:29:14,715 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 20:29:14,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:14,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:14,723 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:14,726 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:14,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:14,733 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 20:29:14,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:14,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:14,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:14,735 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 20:29:14,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 20:29:14,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-19 20:29:14,747 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:14,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:14,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:14,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:14,767 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:14,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-19 20:29:14,772 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:14,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:14,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 20:29:14,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:14,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:14,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:14,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 20:29:14,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 20:29:14,791 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:14,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:14,809 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:14,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:14,810 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:14,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-19 20:29:14,812 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:14,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:14,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:14,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:14,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:14,821 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 20:29:14,821 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 20:29:14,836 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:14,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-19 20:29:14,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:14,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:14,855 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:14,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-19 20:29:14,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:14,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:14,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 20:29:14,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:14,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:14,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:14,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 20:29:14,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 20:29:14,865 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:14,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:14,880 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:14,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:14,881 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:14,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-19 20:29:14,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:14,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:14,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:14,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:14,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:14,892 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 20:29:14,892 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 20:29:14,904 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:14,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:14,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:14,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:14,923 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:14,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-19 20:29:14,925 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 [2021-12-19 20:29:14,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:14,932 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 20:29:14,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:14,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:14,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:14,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 20:29:14,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 20:29:14,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:14,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-19 20:29:14,952 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:14,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:14,953 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:14,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-19 20:29:14,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:14,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:14,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:14,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:14,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:14,971 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 20:29:14,971 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 20:29:14,984 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 20:29:15,031 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2021-12-19 20:29:15,031 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-12-19 20:29:15,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:15,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:15,055 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:15,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-19 20:29:15,096 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 20:29:15,109 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-19 20:29:15,110 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 20:29:15,110 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString1~0#1.base)_1, ULTIMATE.start_main_~i~0#1) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0#1.base)_1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0#1.base)_1 - 1*ULTIMATE.start_main_~length1~0#1 >= 0] [2021-12-19 20:29:15,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:15,151 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2021-12-19 20:29:15,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 20:29:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 20:29:15,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-19 20:29:15,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 20:29:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 20:29:15,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 20:29:15,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 20:29:15,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 20:29:15,252 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 [2021-12-19 20:29:15,253 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 20:29:15,314 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 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). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 53 transitions. Complement of second has 7 states. [2021-12-19 20:29:15,324 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 [2021-12-19 20:29:15,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 20:29:15,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2021-12-19 20:29:15,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-19 20:29:15,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 20:29:15,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-19 20:29:15,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 20:29:15,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-19 20:29:15,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 20:29:15,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 53 transitions. [2021-12-19 20:29:15,337 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-19 20:29:15,340 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 13 states and 18 transitions. [2021-12-19 20:29:15,341 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-19 20:29:15,341 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-19 20:29:15,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2021-12-19 20:29:15,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 20:29:15,342 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-12-19 20:29:15,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:15,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2021-12-19 20:29:15,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-12-19 20:29:15,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 20:29:15,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2021-12-19 20:29:15,361 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-12-19 20:29:15,361 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-12-19 20:29:15,361 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 20:29:15,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2021-12-19 20:29:15,362 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-19 20:29:15,364 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 20:29:15,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 20:29:15,364 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 20:29:15,364 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-19 20:29:15,365 INFO L791 eck$LassoCheckResult]: Stem: 127#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 128#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~0#1, main_#t~ret11#1, main_~length1~0#1, main_~n~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;main_~length1~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 125#L524 assume !(main_~length1~0#1 < 1); 126#L524-2 assume !(main_~n~0#1 < 1); 129#L527-1 call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0; 130#L532-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 133#L532-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);assume { :begin_inline_cstrnlen } true;cstrnlen_#in~str#1.base, cstrnlen_#in~str#1.offset, cstrnlen_#in~maxlen#1 := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~n~0#1;havoc cstrnlen_#res#1;havoc cstrnlen_#t~post2#1.base, cstrnlen_#t~post2#1.offset, cstrnlen_#t~post3#1, cstrnlen_#t~mem4#1, cstrnlen_#t~short5#1, cstrnlen_~str#1.base, cstrnlen_~str#1.offset, cstrnlen_~maxlen#1, cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset;cstrnlen_~str#1.base, cstrnlen_~str#1.offset := cstrnlen_#in~str#1.base, cstrnlen_#in~str#1.offset;cstrnlen_~maxlen#1 := cstrnlen_#in~maxlen#1;havoc cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset;cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset := cstrnlen_~str#1.base, cstrnlen_~str#1.offset; 134#L517-6 [2021-12-19 20:29:15,365 INFO L793 eck$LassoCheckResult]: Loop: 134#L517-6 cstrnlen_#t~short5#1 := 0 != cstrnlen_~maxlen#1 % 4294967296; 135#L517-1 assume cstrnlen_#t~short5#1;call cstrnlen_#t~mem4#1 := read~int(cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset, 1);cstrnlen_#t~short5#1 := 0 != cstrnlen_#t~mem4#1; 136#L517-3 assume !!cstrnlen_#t~short5#1;havoc cstrnlen_#t~mem4#1;havoc cstrnlen_#t~short5#1; 137#L517-5 cstrnlen_#t~post2#1.base, cstrnlen_#t~post2#1.offset := cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset;cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset := cstrnlen_#t~post2#1.base, 1 + cstrnlen_#t~post2#1.offset;havoc cstrnlen_#t~post2#1.base, cstrnlen_#t~post2#1.offset;cstrnlen_#t~post3#1 := cstrnlen_~maxlen#1;cstrnlen_~maxlen#1 := cstrnlen_#t~post3#1 - 1;havoc cstrnlen_#t~post3#1; 134#L517-6 [2021-12-19 20:29:15,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 20:29:15,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2021-12-19 20:29:15,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 20:29:15,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767500496] [2021-12-19 20:29:15,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 20:29:15,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 20:29:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 20:29:15,390 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 20:29:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 20:29:15,399 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 20:29:15,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 20:29:15,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1942630, now seen corresponding path program 1 times [2021-12-19 20:29:15,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 20:29:15,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197830216] [2021-12-19 20:29:15,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 20:29:15,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 20:29:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 20:29:15,405 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 20:29:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 20:29:15,409 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 20:29:15,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 20:29:15,409 INFO L85 PathProgramCache]: Analyzing trace with hash -2087826349, now seen corresponding path program 1 times [2021-12-19 20:29:15,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 20:29:15,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136756051] [2021-12-19 20:29:15,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 20:29:15,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 20:29:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 20:29:15,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 20:29:15,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 20:29:15,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136756051] [2021-12-19 20:29:15,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136756051] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 20:29:15,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 20:29:15,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-19 20:29:15,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42388495] [2021-12-19 20:29:15,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 20:29:15,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 20:29:15,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-19 20:29:15,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-19 20:29:15,586 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 20:29:15,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 20:29:15,644 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2021-12-19 20:29:15,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-19 20:29:15,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 23 transitions. [2021-12-19 20:29:15,645 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-19 20:29:15,646 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 14 states and 17 transitions. [2021-12-19 20:29:15,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-12-19 20:29:15,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-19 20:29:15,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2021-12-19 20:29:15,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 20:29:15,646 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-12-19 20:29:15,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2021-12-19 20:29:15,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2021-12-19 20:29:15,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 20:29:15,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-12-19 20:29:15,647 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-12-19 20:29:15,647 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-12-19 20:29:15,647 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-19 20:29:15,648 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2021-12-19 20:29:15,648 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-19 20:29:15,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 20:29:15,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 20:29:15,648 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 20:29:15,648 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-19 20:29:15,649 INFO L791 eck$LassoCheckResult]: Stem: 179#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 180#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~0#1, main_#t~ret11#1, main_~length1~0#1, main_~n~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;main_~length1~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 177#L524 assume !(main_~length1~0#1 < 1); 178#L524-2 assume !(main_~n~0#1 < 1); 181#L527-1 call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0; 182#L532-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet10#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet10#1; 183#L532-2 main_#t~post9#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 184#L532-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 185#L532-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);assume { :begin_inline_cstrnlen } true;cstrnlen_#in~str#1.base, cstrnlen_#in~str#1.offset, cstrnlen_#in~maxlen#1 := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~n~0#1;havoc cstrnlen_#res#1;havoc cstrnlen_#t~post2#1.base, cstrnlen_#t~post2#1.offset, cstrnlen_#t~post3#1, cstrnlen_#t~mem4#1, cstrnlen_#t~short5#1, cstrnlen_~str#1.base, cstrnlen_~str#1.offset, cstrnlen_~maxlen#1, cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset;cstrnlen_~str#1.base, cstrnlen_~str#1.offset := cstrnlen_#in~str#1.base, cstrnlen_#in~str#1.offset;cstrnlen_~maxlen#1 := cstrnlen_#in~maxlen#1;havoc cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset;cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset := cstrnlen_~str#1.base, cstrnlen_~str#1.offset; 186#L517-6 [2021-12-19 20:29:15,649 INFO L793 eck$LassoCheckResult]: Loop: 186#L517-6 cstrnlen_#t~short5#1 := 0 != cstrnlen_~maxlen#1 % 4294967296; 187#L517-1 assume cstrnlen_#t~short5#1;call cstrnlen_#t~mem4#1 := read~int(cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset, 1);cstrnlen_#t~short5#1 := 0 != cstrnlen_#t~mem4#1; 188#L517-3 assume !!cstrnlen_#t~short5#1;havoc cstrnlen_#t~mem4#1;havoc cstrnlen_#t~short5#1; 189#L517-5 cstrnlen_#t~post2#1.base, cstrnlen_#t~post2#1.offset := cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset;cstrnlen_~cp~0#1.base, cstrnlen_~cp~0#1.offset := cstrnlen_#t~post2#1.base, 1 + cstrnlen_#t~post2#1.offset;havoc cstrnlen_#t~post2#1.base, cstrnlen_#t~post2#1.offset;cstrnlen_#t~post3#1 := cstrnlen_~maxlen#1;cstrnlen_~maxlen#1 := cstrnlen_#t~post3#1 - 1;havoc cstrnlen_#t~post3#1; 186#L517-6 [2021-12-19 20:29:15,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 20:29:15,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1298440016, now seen corresponding path program 1 times [2021-12-19 20:29:15,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 20:29:15,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269861302] [2021-12-19 20:29:15,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 20:29:15,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 20:29:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 20:29:15,658 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 20:29:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 20:29:15,665 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 20:29:15,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 20:29:15,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1942630, now seen corresponding path program 2 times [2021-12-19 20:29:15,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 20:29:15,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896240030] [2021-12-19 20:29:15,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 20:29:15,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 20:29:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 20:29:15,670 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 20:29:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 20:29:15,673 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 20:29:15,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 20:29:15,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1066138571, now seen corresponding path program 1 times [2021-12-19 20:29:15,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 20:29:15,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323663119] [2021-12-19 20:29:15,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 20:29:15,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 20:29:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 20:29:15,686 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 20:29:15,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 20:29:15,696 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 20:29:16,011 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 20:29:16,011 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 20:29:16,011 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 20:29:16,011 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 20:29:16,011 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 20:29:16,011 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:16,011 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 20:29:16,011 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 20:29:16,011 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrnlen-alloca-1.i_Iteration3_Lasso [2021-12-19 20:29:16,011 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 20:29:16,011 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 20:29:16,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 20:29:16,467 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 20:29:16,467 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 20:29:16,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:16,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:16,468 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:16,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-19 20:29:16,478 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:16,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:16,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 20:29:16,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:16,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:16,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:16,484 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 20:29:16,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 20:29:16,495 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:16,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-19 20:29:16,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:16,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:16,511 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:16,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-19 20:29:16,526 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:16,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:16,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 20:29:16,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:16,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:16,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:16,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 20:29:16,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 20:29:16,533 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:16,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:16,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:16,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:16,549 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:16,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-19 20:29:16,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:16,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:16,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 20:29:16,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:16,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:16,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:16,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 20:29:16,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 20:29:16,567 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:16,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:16,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:16,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:16,583 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:16,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-19 20:29:16,585 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:16,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:16,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:16,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:16,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:16,592 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 20:29:16,592 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 20:29:16,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:16,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:16,615 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:16,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:16,616 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:16,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-19 20:29:16,621 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:16,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:16,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:16,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:16,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:16,630 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 20:29:16,631 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 20:29:16,637 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:16,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:16,653 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:16,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:16,654 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:16,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-19 20:29:16,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:16,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:16,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:16,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:16,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:16,663 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 20:29:16,663 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 20:29:16,665 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:16,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:16,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:16,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:16,684 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:16,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-19 20:29:16,685 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:16,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:16,691 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 20:29:16,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:16,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:16,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:16,692 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 20:29:16,692 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 20:29:16,707 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:16,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-19 20:29:16,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:16,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:16,725 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:16,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-19 20:29:16,726 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:16,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:16,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:16,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:16,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:16,733 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 20:29:16,733 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 20:29:16,739 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:16,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:16,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:16,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:16,755 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:16,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-19 20:29:16,757 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:16,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:16,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 20:29:16,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:16,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:16,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:16,766 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 20:29:16,766 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 20:29:16,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:16,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:16,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:16,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:16,785 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:16,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-19 20:29:16,795 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 [2021-12-19 20:29:16,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:16,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:16,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:16,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:16,808 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 20:29:16,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 20:29:16,818 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:16,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:16,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:16,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:16,836 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:16,843 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:16,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-19 20:29:16,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:16,850 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 20:29:16,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:16,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:16,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:16,850 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 20:29:16,850 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 20:29:16,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:16,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:16,866 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:16,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:16,867 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:16,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-19 20:29:16,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:16,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:16,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 20:29:16,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:16,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:16,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:16,876 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 20:29:16,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 20:29:16,886 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:16,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:16,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:16,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:16,904 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:16,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-19 20:29:16,906 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:16,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:16,912 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 20:29:16,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:16,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:16,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:16,914 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 20:29:16,914 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 20:29:16,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:16,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:16,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:16,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:16,933 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:16,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-19 20:29:16,935 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:16,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:16,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 20:29:16,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:16,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:16,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:16,941 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 20:29:16,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 20:29:16,942 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:16,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:16,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:16,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:16,960 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:16,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-19 20:29:16,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:16,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:16,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 20:29:16,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:16,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:16,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:16,969 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 20:29:16,969 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 20:29:16,969 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:16,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-19 20:29:16,986 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:16,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:16,987 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:16,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-19 20:29:16,990 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:16,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:16,996 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 20:29:16,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:16,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:16,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:16,997 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 20:29:16,997 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 20:29:16,997 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:17,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:17,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:17,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:17,015 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:17,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-19 20:29:17,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:17,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:17,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:17,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:17,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:17,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 20:29:17,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 20:29:17,026 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:17,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:17,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:17,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:17,044 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:17,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-19 20:29:17,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:17,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:17,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:17,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:17,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:17,056 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 20:29:17,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 20:29:17,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:17,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:17,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:17,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:17,094 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:17,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-19 20:29:17,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:17,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:17,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:17,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:17,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:17,104 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 20:29:17,104 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 20:29:17,106 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:17,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-19 20:29:17,121 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:17,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:17,121 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:17,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-19 20:29:17,124 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:17,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:17,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:17,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:17,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:17,133 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 20:29:17,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 20:29:17,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:17,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-19 20:29:17,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:17,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:17,154 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:17,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-19 20:29:17,156 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:17,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:17,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:17,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:17,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:17,163 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 20:29:17,163 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 20:29:17,165 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 20:29:17,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-19 20:29:17,180 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:17,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:17,181 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:17,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-19 20:29:17,183 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 20:29:17,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 20:29:17,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 20:29:17,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 20:29:17,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 20:29:17,198 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 20:29:17,198 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 20:29:17,210 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 20:29:17,231 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-12-19 20:29:17,231 INFO L444 ModelExtractionUtils]: 20 out of 34 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-12-19 20:29:17,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 20:29:17,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 20:29:17,232 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 20:29:17,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-19 20:29:17,233 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 20:29:17,248 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-19 20:29:17,248 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 20:29:17,248 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrnlen_~cp~0#1.offset, v_rep(select #length ULTIMATE.start_main_~nondetString1~0#1.base)_2) = -1*ULTIMATE.start_cstrnlen_~cp~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0#1.base)_2 Supporting invariants [] [2021-12-19 20:29:17,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-19 20:29:17,287 INFO L297 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2021-12-19 20:29:17,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 20:29:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 20:29:17,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-19 20:29:17,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 20:29:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 20:29:17,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-19 20:29:17,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 20:29:17,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 20:29:17,371 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 [2021-12-19 20:29:17,371 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 20:29:17,390 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 21 transitions. Complement of second has 6 states. [2021-12-19 20:29:17,391 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 [2021-12-19 20:29:17,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 20:29:17,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-12-19 20:29:17,391 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 9 letters. Loop has 4 letters. [2021-12-19 20:29:17,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 20:29:17,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 13 letters. Loop has 4 letters. [2021-12-19 20:29:17,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 20:29:17,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 9 letters. Loop has 8 letters. [2021-12-19 20:29:17,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 20:29:17,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2021-12-19 20:29:17,392 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 20:29:17,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2021-12-19 20:29:17,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-19 20:29:17,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-19 20:29:17,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-19 20:29:17,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 20:29:17,393 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 20:29:17,393 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 20:29:17,393 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 20:29:17,393 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-19 20:29:17,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-19 20:29:17,393 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 20:29:17,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-19 20:29:17,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 08:29:17 BoogieIcfgContainer [2021-12-19 20:29:17,397 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 20:29:17,397 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 20:29:17,398 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 20:29:17,398 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 20:29:17,398 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 08:29:13" (3/4) ... [2021-12-19 20:29:17,399 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-19 20:29:17,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 20:29:17,400 INFO L158 Benchmark]: Toolchain (without parser) took 4119.20ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 70.5MB in the beginning and 68.3MB in the end (delta: 2.2MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2021-12-19 20:29:17,400 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory was 77.6MB in the beginning and 77.6MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 20:29:17,400 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.13ms. Allocated memory is still 107.0MB. Free memory was 70.3MB in the beginning and 75.9MB in the end (delta: -5.6MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2021-12-19 20:29:17,401 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.44ms. Allocated memory is still 107.0MB. Free memory was 75.9MB in the beginning and 73.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 20:29:17,401 INFO L158 Benchmark]: Boogie Preprocessor took 34.81ms. Allocated memory is still 107.0MB. Free memory was 73.8MB in the beginning and 72.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 20:29:17,401 INFO L158 Benchmark]: RCFGBuilder took 261.59ms. Allocated memory is still 107.0MB. Free memory was 72.7MB in the beginning and 62.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-19 20:29:17,401 INFO L158 Benchmark]: BuchiAutomizer took 3446.79ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 61.7MB in the beginning and 68.3MB in the end (delta: -6.5MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2021-12-19 20:29:17,401 INFO L158 Benchmark]: Witness Printer took 1.97ms. Allocated memory is still 134.2MB. Free memory is still 68.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 20:29:17,403 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory was 77.6MB in the beginning and 77.6MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.13ms. Allocated memory is still 107.0MB. Free memory was 70.3MB in the beginning and 75.9MB in the end (delta: -5.6MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.44ms. Allocated memory is still 107.0MB. Free memory was 75.9MB in the beginning and 73.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.81ms. Allocated memory is still 107.0MB. Free memory was 73.8MB in the beginning and 72.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 261.59ms. Allocated memory is still 107.0MB. Free memory was 72.7MB in the beginning and 62.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3446.79ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 61.7MB in the beginning and 68.3MB in the end (delta: -6.5MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Witness Printer took 1.97ms. Allocated memory is still 134.2MB. Free memory is still 68.3MB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[nondetString1] + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * cp + unknown-#length-unknown[nondetString1] and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 93 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 39 mSDtfsCounter, 52 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital125 mio100 ax115 hnf99 lsp75 ukn94 mio100 lsp56 div100 bol100 ite100 ukn100 eq172 hnf90 smp95 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms 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! [2021-12-19 20:29:17,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-12-19 20:29:17,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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