./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/cstrcspn_mixed_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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/termination-15/cstrcspn_mixed_alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash bee04d628cc50c5f036e0a10e9bd347013a62a54 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 14:32:14,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 14:32:14,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 14:32:14,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 14:32:14,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 14:32:14,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 14:32:14,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 14:32:14,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 14:32:14,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 14:32:14,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 14:32:14,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 14:32:14,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 14:32:14,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 14:32:14,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 14:32:14,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 14:32:14,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 14:32:14,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 14:32:14,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 14:32:14,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 14:32:14,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 14:32:14,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 14:32:14,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 14:32:14,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 14:32:14,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 14:32:14,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 14:32:14,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 14:32:14,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 14:32:14,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 14:32:14,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 14:32:14,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 14:32:14,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 14:32:14,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 14:32:14,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 14:32:14,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 14:32:14,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 14:32:14,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 14:32:14,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 14:32:14,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 14:32:14,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 14:32:14,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 14:32:14,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 14:32:14,522 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 14:32:14,561 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 14:32:14,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 14:32:14,563 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 14:32:14,563 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 14:32:14,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 14:32:14,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 14:32:14,565 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 14:32:14,565 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 14:32:14,565 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 14:32:14,566 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 14:32:14,566 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 14:32:14,567 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 14:32:14,567 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 14:32:14,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 14:32:14,567 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 14:32:14,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 14:32:14,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 14:32:14,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 14:32:14,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 14:32:14,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 14:32:14,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 14:32:14,568 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 14:32:14,569 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 14:32:14,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 14:32:14,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 14:32:14,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 14:32:14,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 14:32:14,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 14:32:14,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 14:32:14,571 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 14:32:14,571 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bee04d628cc50c5f036e0a10e9bd347013a62a54 [2021-08-27 14:32:14,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 14:32:14,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 14:32:14,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 14:32:14,910 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 14:32:14,912 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 14:32:14,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/cstrcspn_mixed_alloca.i [2021-08-27 14:32:14,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9653544d/71ef44c1366f437cafbed5e0e6956043/FLAGb9951c4e0 [2021-08-27 14:32:15,496 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 14:32:15,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/cstrcspn_mixed_alloca.i [2021-08-27 14:32:15,508 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9653544d/71ef44c1366f437cafbed5e0e6956043/FLAGb9951c4e0 [2021-08-27 14:32:15,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9653544d/71ef44c1366f437cafbed5e0e6956043 [2021-08-27 14:32:15,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 14:32:15,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 14:32:15,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 14:32:15,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 14:32:15,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 14:32:15,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:32:15" (1/1) ... [2021-08-27 14:32:15,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2220086e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:15, skipping insertion in model container [2021-08-27 14:32:15,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:32:15" (1/1) ... [2021-08-27 14:32:15,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 14:32:15,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 14:32:16,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:32:16,273 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 14:32:16,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:32:16,368 INFO L208 MainTranslator]: Completed translation [2021-08-27 14:32:16,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:16 WrapperNode [2021-08-27 14:32:16,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 14:32:16,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 14:32:16,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 14:32:16,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 14:32:16,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:16" (1/1) ... [2021-08-27 14:32:16,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:16" (1/1) ... [2021-08-27 14:32:16,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 14:32:16,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 14:32:16,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 14:32:16,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 14:32:16,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:16" (1/1) ... [2021-08-27 14:32:16,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:16" (1/1) ... [2021-08-27 14:32:16,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:16" (1/1) ... [2021-08-27 14:32:16,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:16" (1/1) ... [2021-08-27 14:32:16,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:16" (1/1) ... [2021-08-27 14:32:16,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:16" (1/1) ... [2021-08-27 14:32:16,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:16" (1/1) ... [2021-08-27 14:32:16,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 14:32:16,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 14:32:16,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 14:32:16,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 14:32:16,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:16" (1/1) ... [2021-08-27 14:32:16,456 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:16,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:16,473 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) [2021-08-27 14:32:16,485 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 [2021-08-27 14:32:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 14:32:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 14:32:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 14:32:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 14:32:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 14:32:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 14:32:16,764 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 14:32:16,764 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-27 14:32:16,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:32:16 BoogieIcfgContainer [2021-08-27 14:32:16,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 14:32:16,766 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 14:32:16,767 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 14:32:16,769 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 14:32:16,770 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:32:16,770 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 02:32:15" (1/3) ... [2021-08-27 14:32:16,771 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c26d8a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:32:16, skipping insertion in model container [2021-08-27 14:32:16,771 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:32:16,771 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:16" (2/3) ... [2021-08-27 14:32:16,771 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c26d8a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:32:16, skipping insertion in model container [2021-08-27 14:32:16,772 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:32:16,772 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:32:16" (3/3) ... [2021-08-27 14:32:16,773 INFO L389 chiAutomizerObserver]: Analyzing ICFG cstrcspn_mixed_alloca.i [2021-08-27 14:32:16,818 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 14:32:16,818 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 14:32:16,818 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 14:32:16,818 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 14:32:16,819 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 14:32:16,819 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 14:32:16,819 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 14:32:16,819 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 14:32:16,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:32:16,845 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-27 14:32:16,845 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:32:16,845 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:32:16,850 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-27 14:32:16,864 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-08-27 14:32:16,865 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 14:32:16,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:32:16,867 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-27 14:32:16,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:32:16,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:32:16,868 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-27 14:32:16,868 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-08-27 14:32:16,874 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 17#L382true assume !(main_~length1~0 < 1); 15#L382-2true assume !(main_~length2~0 < 1); 6#L385-1true call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 10#L369-4true [2021-08-27 14:32:16,874 INFO L793 eck$LassoCheckResult]: Loop: 10#L369-4true call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 16#L369-1true assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 8#L372-5true assume !true; 7#L372-6true call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 18#L374true assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 11#L369-3true cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, 1 + cstrcspn_#t~post205.offset;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 10#L369-4true [2021-08-27 14:32:16,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:32:16,879 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-08-27 14:32:16,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:32:16,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032459677] [2021-08-27 14:32:16,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:32:16,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:32:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:17,029 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:32:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:17,100 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:32:17,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:32:17,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1454917130, now seen corresponding path program 1 times [2021-08-27 14:32:17,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:32:17,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520160050] [2021-08-27 14:32:17,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:32:17,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:32:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:32:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:32:17,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:32:17,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520160050] [2021-08-27 14:32:17,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520160050] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 14:32:17,181 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 14:32:17,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 14:32:17,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139344217] [2021-08-27 14:32:17,185 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 14:32:17,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:32:17,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-27 14:32:17,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-27 14:32:17,208 INFO L87 Difference]: Start difference. First operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-08-27 14:32:17,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:32:17,214 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2021-08-27 14:32:17,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 14:32:17,216 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2021-08-27 14:32:17,220 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-27 14:32:17,223 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 17 transitions. [2021-08-27 14:32:17,224 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-08-27 14:32:17,225 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-08-27 14:32:17,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2021-08-27 14:32:17,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:32:17,226 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-08-27 14:32:17,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2021-08-27 14:32:17,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-08-27 14:32:17,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:32:17,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-08-27 14:32:17,247 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-08-27 14:32:17,248 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-08-27 14:32:17,248 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 14:32:17,248 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2021-08-27 14:32:17,250 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-08-27 14:32:17,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:32:17,250 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:32:17,250 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-27 14:32:17,251 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:32:17,251 INFO L791 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 45#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 52#L382 assume !(main_~length1~0 < 1); 56#L382-2 assume !(main_~length2~0 < 1); 46#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 47#L369-4 [2021-08-27 14:32:17,252 INFO L793 eck$LassoCheckResult]: Loop: 47#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 53#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 50#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 51#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 55#L372-3 assume !cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210; 48#L372-6 call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 49#L374 assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 54#L369-3 cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, 1 + cstrcspn_#t~post205.offset;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 47#L369-4 [2021-08-27 14:32:17,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:32:17,253 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2021-08-27 14:32:17,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:32:17,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170807592] [2021-08-27 14:32:17,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:32:17,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:32:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:17,287 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:32:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:17,307 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:32:17,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:32:17,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1927396657, now seen corresponding path program 1 times [2021-08-27 14:32:17,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:32:17,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890928713] [2021-08-27 14:32:17,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:32:17,309 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:32:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:17,319 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:32:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:17,328 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:32:17,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:32:17,329 INFO L82 PathProgramCache]: Analyzing trace with hash -102988426, now seen corresponding path program 1 times [2021-08-27 14:32:17,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:32:17,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011849199] [2021-08-27 14:32:17,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:32:17,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:32:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:17,354 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:32:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:17,380 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:32:18,459 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:32:18,460 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:32:18,460 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:32:18,460 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:32:18,460 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:32:18,460 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:18,460 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:32:18,460 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:32:18,461 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_mixed_alloca.i_Iteration2_Lasso [2021-08-27 14:32:18,461 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:32:18,461 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:32:18,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:18,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:18,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:18,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:18,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:18,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:18,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:18,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:19,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:19,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:19,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:19,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:19,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:19,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:19,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:19,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:19,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:19,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:19,788 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:32:19,792 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:32:19,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:19,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:19,795 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) [2021-08-27 14:32:19,800 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 [2021-08-27 14:32:19,801 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:32:19,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:32:19,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:32:19,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:32:19,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:32:19,838 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:32:19,839 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:32:19,861 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:32:19,894 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 [2021-08-27 14:32:19,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:19,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:19,897 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) [2021-08-27 14:32:19,899 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 [2021-08-27 14:32:19,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:32:19,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:32:19,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:32:19,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:32:19,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:32:19,920 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:32:19,921 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:32:19,940 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:32:19,979 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 [2021-08-27 14:32:19,980 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:19,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:19,981 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) [2021-08-27 14:32:19,984 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 [2021-08-27 14:32:19,985 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:32:19,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:32:19,993 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:32:19,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:32:19,993 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2021-08-27 14:32:19,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:32:20,001 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-27 14:32:20,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:32:20,012 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:32:20,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 14:32:20,031 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:20,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:20,032 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) [2021-08-27 14:32:20,033 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 [2021-08-27 14:32:20,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:32:20,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:32:20,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:32:20,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:32:20,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:32:20,043 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:32:20,044 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:32:20,080 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:32:20,107 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 [2021-08-27 14:32:20,107 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:20,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:20,111 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) [2021-08-27 14:32:20,111 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 [2021-08-27 14:32:20,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:32:20,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:32:20,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:32:20,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:32:20,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:32:20,121 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:32:20,121 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:32:20,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:32:20,157 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 [2021-08-27 14:32:20,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:20,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:20,158 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) [2021-08-27 14:32:20,158 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 [2021-08-27 14:32:20,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:32:20,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:32:20,166 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:32:20,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:32:20,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:32:20,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:32:20,167 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:32:20,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:32:20,168 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:32:20,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-27 14:32:20,187 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:20,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:20,188 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) [2021-08-27 14:32:20,188 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 [2021-08-27 14:32:20,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:32:20,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:32:20,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:32:20,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:32:20,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:32:20,214 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:32:20,214 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:32:20,220 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:32:20,239 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 [2021-08-27 14:32:20,239 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:20,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:20,240 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) [2021-08-27 14:32:20,241 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 [2021-08-27 14:32:20,242 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:32:20,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:32:20,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:32:20,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:32:20,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:32:20,264 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:32:20,264 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:32:20,280 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:32:20,317 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2021-08-27 14:32:20,317 INFO L444 ModelExtractionUtils]: 18 out of 49 variables were initially zero. Simplification set additionally 28 variables to zero. [2021-08-27 14:32:20,319 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:20,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:20,321 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) [2021-08-27 14:32:20,359 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 [2021-08-27 14:32:20,360 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:32:20,390 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 14:32:20,390 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:32:20,391 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc215.base)_1, ULTIMATE.start_cstrcspn_~sc1~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc215.base)_1 - 1*ULTIMATE.start_cstrcspn_~sc1~0.offset Supporting invariants [] [2021-08-27 14:32:20,413 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 [2021-08-27 14:32:20,443 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2021-08-27 14:32:20,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:32:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:32:20,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 14:32:20,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:32:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:32:20,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 14:32:20,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:32:20,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-08-27 14:32:20,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:32:20,724 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 [2021-08-27 14:32:20,725 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-08-27 14:32:20,795 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 21 states and 28 transitions. Complement of second has 4 states. [2021-08-27 14:32:20,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 14:32:20,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-08-27 14:32:20,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2021-08-27 14:32:20,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 8 letters. [2021-08-27 14:32:20,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:32:20,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2021-08-27 14:32:20,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:32:20,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 16 letters. [2021-08-27 14:32:20,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:32:20,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2021-08-27 14:32:20,803 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-27 14:32:20,805 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 25 transitions. [2021-08-27 14:32:20,805 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-08-27 14:32:20,806 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-08-27 14:32:20,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2021-08-27 14:32:20,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:32:20,806 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-08-27 14:32:20,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2021-08-27 14:32:20,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-08-27 14:32:20,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:32:20,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2021-08-27 14:32:20,809 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-08-27 14:32:20,809 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-08-27 14:32:20,810 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 14:32:20,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2021-08-27 14:32:20,813 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-27 14:32:20,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:32:20,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:32:20,814 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:32:20,814 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 14:32:20,815 INFO L791 eck$LassoCheckResult]: Stem: 178#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 179#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 188#L382 assume !(main_~length1~0 < 1); 195#L382-2 assume !(main_~length2~0 < 1); 180#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 181#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 190#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 184#L372-5 [2021-08-27 14:32:20,815 INFO L793 eck$LassoCheckResult]: Loop: 184#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 185#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 193#L372-3 assume !!cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset - 1;havoc cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset; 184#L372-5 [2021-08-27 14:32:20,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:32:20,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935595, now seen corresponding path program 1 times [2021-08-27 14:32:20,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:32:20,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784126729] [2021-08-27 14:32:20,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:32:20,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:32:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:20,851 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:32:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:20,875 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:32:20,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:32:20,881 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 1 times [2021-08-27 14:32:20,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:32:20,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340378613] [2021-08-27 14:32:20,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:32:20,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:32:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:20,891 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:32:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:20,899 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:32:20,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:32:20,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1593218778, now seen corresponding path program 1 times [2021-08-27 14:32:20,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:32:20,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344656368] [2021-08-27 14:32:20,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:32:20,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:32:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:20,932 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:32:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:20,947 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:32:21,848 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:32:21,848 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:32:21,848 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:32:21,848 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:32:21,848 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:32:21,848 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:21,848 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:32:21,848 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:32:21,848 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_mixed_alloca.i_Iteration3_Lasso [2021-08-27 14:32:21,848 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:32:21,849 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:32:21,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:22,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:32:23,066 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:32:23,066 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:32:23,067 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:23,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:23,069 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) [2021-08-27 14:32:23,069 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 [2021-08-27 14:32:23,072 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:32:23,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:32:23,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:32:23,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:32:23,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:32:23,080 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:32:23,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:32:23,094 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:32:23,111 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 [2021-08-27 14:32:23,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:23,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:23,113 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) [2021-08-27 14:32:23,113 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 [2021-08-27 14:32:23,115 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:32:23,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:32:23,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:32:23,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:32:23,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:32:23,126 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:32:23,126 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:32:23,164 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:32:23,188 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 [2021-08-27 14:32:23,188 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:23,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:23,193 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) [2021-08-27 14:32:23,201 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:32:23,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:32:23,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:32:23,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:32:23,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:32:23,220 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:32:23,220 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:32:23,226 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 [2021-08-27 14:32:23,240 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:32:23,267 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 [2021-08-27 14:32:23,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:23,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:23,268 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) [2021-08-27 14:32:23,270 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 [2021-08-27 14:32:23,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:32:23,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:32:23,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:32:23,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:32:23,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:32:23,280 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:32:23,280 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:32:23,296 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:32:23,323 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 [2021-08-27 14:32:23,323 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:23,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:23,326 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) [2021-08-27 14:32:23,327 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 [2021-08-27 14:32:23,329 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:32:23,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:32:23,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:32:23,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:32:23,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:32:23,339 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:32:23,339 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:32:23,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:32:23,379 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 [2021-08-27 14:32:23,379 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:23,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:23,381 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) [2021-08-27 14:32:23,391 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:32:23,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:32:23,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:32:23,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:32:23,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:32:23,414 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:32:23,415 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:32:23,415 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 [2021-08-27 14:32:23,436 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:32:23,480 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-08-27 14:32:23,480 INFO L444 ModelExtractionUtils]: 23 out of 52 variables were initially zero. Simplification set additionally 26 variables to zero. [2021-08-27 14:32:23,480 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:32:23,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:23,482 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) [2021-08-27 14:32:23,483 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 [2021-08-27 14:32:23,484 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:32:23,514 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 14:32:23,514 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:32:23,515 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_2, ULTIMATE.start_cstrcspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_2 + 2*ULTIMATE.start_cstrcspn_~s~0.offset Supporting invariants [] [2021-08-27 14:32:23,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-08-27 14:32:23,590 INFO L297 tatePredicateManager]: 18 out of 19 supporting invariants were superfluous and have been removed [2021-08-27 14:32:23,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:32:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:32:23,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 14:32:23,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:32:23,687 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 [2021-08-27 14:32:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:32:23,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 14:32:23,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:32:23,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:32:23,774 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-08-27 14:32:23,775 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-08-27 14:32:23,824 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 43 states and 57 transitions. Complement of second has 6 states. [2021-08-27 14:32:23,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 14:32:23,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-08-27 14:32:23,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-08-27 14:32:23,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2021-08-27 14:32:23,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:32:23,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2021-08-27 14:32:23,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:32:23,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2021-08-27 14:32:23,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:32:23,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 57 transitions. [2021-08-27 14:32:23,828 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-27 14:32:23,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 40 transitions. [2021-08-27 14:32:23,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-08-27 14:32:23,829 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-08-27 14:32:23,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2021-08-27 14:32:23,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:32:23,829 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2021-08-27 14:32:23,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2021-08-27 14:32:23,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2021-08-27 14:32:23,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:32:23,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2021-08-27 14:32:23,832 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2021-08-27 14:32:23,832 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2021-08-27 14:32:23,832 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 14:32:23,832 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2021-08-27 14:32:23,833 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-27 14:32:23,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:32:23,833 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:32:23,833 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:32:23,834 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 14:32:23,834 INFO L791 eck$LassoCheckResult]: Stem: 374#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 375#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 384#L382 assume !(main_~length1~0 < 1); 393#L382-2 assume !(main_~length2~0 < 1); 376#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 377#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 385#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 394#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 397#L372-1 assume !cstrcspn_#t~short210; 395#L372-3 assume !cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210; 378#L372-6 call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 379#L374 assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 389#L369-3 cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, 1 + cstrcspn_#t~post205.offset;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 386#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 388#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 380#L372-5 [2021-08-27 14:32:23,834 INFO L793 eck$LassoCheckResult]: Loop: 380#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 381#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 390#L372-3 assume !!cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset - 1;havoc cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset; 380#L372-5 [2021-08-27 14:32:23,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:32:23,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1587378397, now seen corresponding path program 1 times [2021-08-27 14:32:23,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:32:23,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243526055] [2021-08-27 14:32:23,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:32:23,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:32:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:23,846 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:32:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:23,860 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:32:23,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:32:23,860 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 2 times [2021-08-27 14:32:23,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:32:23,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033173547] [2021-08-27 14:32:23,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:32:23,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:32:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:23,865 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:32:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:32:23,868 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:32:23,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:32:23,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1999924968, now seen corresponding path program 1 times [2021-08-27 14:32:23,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:32:23,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623143327] [2021-08-27 14:32:23,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:32:23,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:32:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:32:23,971 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:32:23,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:32:23,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623143327] [2021-08-27 14:32:23,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623143327] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 14:32:23,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920751066] [2021-08-27 14:32:23,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:32:23,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 14:32:23,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:32:23,973 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 14:32:23,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-08-27 14:32:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:32:24,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 25 conjunts are in the unsatisfiable core [2021-08-27 14:32:24,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:32:24,101 INFO L354 Elim1Store]: treesize reduction 44, result has 18.5 percent of original size [2021-08-27 14:32:24,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 23 [2021-08-27 14:32:59,344 WARN L207 SmtUtils]: Spent 12.02 s on a formula simplification that was a NOOP. DAG size: 22 [2021-08-27 14:33:21,673 WARN L207 SmtUtils]: Spent 10.24 s on a formula simplification that was a NOOP. DAG size: 26 [2021-08-27 14:33:33,746 WARN L207 SmtUtils]: Spent 12.02 s on a formula simplification that was a NOOP. DAG size: 30 [2021-08-27 14:34:10,103 WARN L207 SmtUtils]: Spent 12.29 s on a formula simplification that was a NOOP. DAG size: 24 [2021-08-27 14:34:54,043 WARN L207 SmtUtils]: Spent 19.79 s on a formula simplification. DAG size of input: 24 DAG size of output: 17 [2021-08-27 14:34:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:34:54,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920751066] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 14:34:54,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 14:34:54,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-08-27 14:34:54,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200553024] [2021-08-27 14:34:54,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:34:54,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-27 14:34:54,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=116, Unknown=7, NotChecked=0, Total=156 [2021-08-27 14:34:54,204 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:35:18,314 WARN L207 SmtUtils]: Spent 24.06 s on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-08-27 14:35:30,704 WARN L207 SmtUtils]: Spent 12.37 s on a formula simplification. DAG size of input: 37 DAG size of output: 23 [2021-08-27 14:35:40,211 WARN L207 SmtUtils]: Spent 9.48 s on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2021-08-27 14:35:52,271 WARN L207 SmtUtils]: Spent 12.02 s on a formula simplification that was a NOOP. DAG size: 24 [2021-08-27 14:35:52,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:35:52,609 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2021-08-27 14:35:52,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 14:35:52,610 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 72 transitions. [2021-08-27 14:35:52,611 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-27 14:35:52,613 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 43 states and 53 transitions. [2021-08-27 14:35:52,613 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-08-27 14:35:52,614 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-08-27 14:35:52,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 53 transitions. [2021-08-27 14:35:52,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:35:52,614 INFO L681 BuchiCegarLoop]: Abstraction has 43 states and 53 transitions. [2021-08-27 14:35:52,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 53 transitions. [2021-08-27 14:35:52,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 28. [2021-08-27 14:35:52,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:35:52,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2021-08-27 14:35:52,617 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-08-27 14:35:52,617 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-08-27 14:35:52,617 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-27 14:35:52,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 36 transitions. [2021-08-27 14:35:52,618 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-27 14:35:52,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:35:52,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:35:52,619 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:35:52,619 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 14:35:52,619 INFO L791 eck$LassoCheckResult]: Stem: 536#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 537#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 546#L382 assume !(main_~length1~0 < 1); 555#L382-2 assume !(main_~length2~0 < 1); 538#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 539#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 547#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 560#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 553#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 554#L372-3 assume !cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210; 540#L372-6 call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 541#L374 assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 551#L369-3 cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, 1 + cstrcspn_#t~post205.offset;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 548#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 550#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 542#L372-5 [2021-08-27 14:35:52,619 INFO L793 eck$LassoCheckResult]: Loop: 542#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 543#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 552#L372-3 assume !!cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset - 1;havoc cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset; 542#L372-5 [2021-08-27 14:35:52,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:35:52,620 INFO L82 PathProgramCache]: Analyzing trace with hash -187628965, now seen corresponding path program 2 times [2021-08-27 14:35:52,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:35:52,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947341393] [2021-08-27 14:35:52,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:35:52,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:35:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:52,645 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:35:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:52,672 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:35:52,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:35:52,673 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 3 times [2021-08-27 14:35:52,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:35:52,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612553769] [2021-08-27 14:35:52,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:35:52,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:35:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:52,678 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:35:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:52,682 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:35:52,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:35:52,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1902015318, now seen corresponding path program 1 times [2021-08-27 14:35:52,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:35:52,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436734011] [2021-08-27 14:35:52,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:35:52,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:35:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:52,699 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:35:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:35:52,727 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:35:54,041 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:35:54,041 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:35:54,041 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:35:54,041 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:35:54,041 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:35:54,041 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:54,041 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:35:54,041 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:35:54,041 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_mixed_alloca.i_Iteration5_Lasso [2021-08-27 14:35:54,041 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:35:54,041 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:35:54,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:54,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:54,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:54,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:54,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:54,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:54,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:54,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:54,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:54,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:55,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:55,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:55,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:55,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:55,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:55,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:55,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:55,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:55,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:35:56,475 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:35:56,475 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:35:56,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:56,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:56,479 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) [2021-08-27 14:35:56,480 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 [2021-08-27 14:35:56,481 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:35:56,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:56,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:35:56,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:56,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:56,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:56,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:35:56,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:35:56,488 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:56,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-08-27 14:35:56,504 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:56,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:56,505 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) [2021-08-27 14:35:56,507 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 [2021-08-27 14:35:56,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:35:56,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:56,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:35:56,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:56,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:56,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:56,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:35:56,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:35:56,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:56,533 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 [2021-08-27 14:35:56,533 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:56,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:56,535 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) [2021-08-27 14:35:56,548 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 [2021-08-27 14:35:56,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:35:56,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:56,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:35:56,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:56,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:56,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:56,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:35:56,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:35:56,564 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:56,580 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 [2021-08-27 14:35:56,580 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:56,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:56,581 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) [2021-08-27 14:35:56,583 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 [2021-08-27 14:35:56,583 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:35:56,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:56,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:56,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:56,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:56,590 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:35:56,590 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:35:56,592 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:56,608 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 [2021-08-27 14:35:56,608 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:56,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:56,609 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) [2021-08-27 14:35:56,609 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 [2021-08-27 14:35:56,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:35:56,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:56,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:35:56,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:56,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:56,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:56,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:35:56,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:35:56,618 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:56,635 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 [2021-08-27 14:35:56,636 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:56,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:56,636 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) [2021-08-27 14:35:56,639 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 [2021-08-27 14:35:56,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:35:56,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:56,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:56,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:56,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:56,647 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:35:56,647 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:35:56,649 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:56,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-08-27 14:35:56,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:56,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:56,667 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) [2021-08-27 14:35:56,667 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 [2021-08-27 14:35:56,669 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:35:56,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:56,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:35:56,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:56,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:56,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:56,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:35:56,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:35:56,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:56,692 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 [2021-08-27 14:35:56,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:56,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:56,694 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) [2021-08-27 14:35:56,696 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 [2021-08-27 14:35:56,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:35:56,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:56,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:35:56,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:56,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:56,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:56,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:35:56,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:35:56,704 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:56,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-08-27 14:35:56,720 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:56,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:56,721 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) [2021-08-27 14:35:56,722 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 [2021-08-27 14:35:56,723 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:35:56,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:56,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:56,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:56,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:56,730 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:35:56,730 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:35:56,732 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:56,752 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 [2021-08-27 14:35:56,752 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:56,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:56,753 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) [2021-08-27 14:35:56,754 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 [2021-08-27 14:35:56,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:35:56,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:56,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:56,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:56,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:56,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:35:56,766 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:35:56,771 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:56,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-08-27 14:35:56,788 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:56,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:56,789 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) [2021-08-27 14:35:56,797 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 [2021-08-27 14:35:56,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:35:56,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:56,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:56,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:56,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:56,805 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:35:56,805 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:35:56,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:56,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-08-27 14:35:56,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:56,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:56,859 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) [2021-08-27 14:35:56,869 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 [2021-08-27 14:35:56,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:56,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:56,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:56,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:56,893 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:35:56,893 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:35:56,904 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 [2021-08-27 14:35:56,909 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:35:56,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-08-27 14:35:56,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:56,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:56,937 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) [2021-08-27 14:35:56,948 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 [2021-08-27 14:35:56,948 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:35:56,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:35:56,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:35:56,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:35:56,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:35:56,973 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:35:56,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:35:56,989 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:35:57,014 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-08-27 14:35:57,015 INFO L444 ModelExtractionUtils]: 31 out of 52 variables were initially zero. Simplification set additionally 18 variables to zero. [2021-08-27 14:35:57,015 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:35:57,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:35:57,016 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) [2021-08-27 14:35:57,016 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 [2021-08-27 14:35:57,018 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:35:57,024 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 14:35:57,024 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:35:57,024 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_3, ULTIMATE.start_cstrcspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_3 + 2*ULTIMATE.start_cstrcspn_~s~0.offset Supporting invariants [] [2021-08-27 14:35:57,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-08-27 14:35:57,106 INFO L297 tatePredicateManager]: 27 out of 28 supporting invariants were superfluous and have been removed [2021-08-27 14:35:57,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:35:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:35:57,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 14:35:57,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:35:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:35:57,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 14:35:57,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:35:57,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:35:57,310 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-08-27 14:35:57,310 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:35:57,355 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 [2021-08-27 14:35:57,385 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 58 transitions. Complement of second has 6 states. [2021-08-27 14:35:57,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 14:35:57,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:35:57,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-08-27 14:35:57,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2021-08-27 14:35:57,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:35:57,390 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 14:35:57,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:35:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:35:57,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 14:35:57,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:35:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:35:57,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 14:35:57,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:35:57,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:35:57,610 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2021-08-27 14:35:57,610 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:35:57,646 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 58 transitions. Complement of second has 6 states. [2021-08-27 14:35:57,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 14:35:57,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:35:57,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-08-27 14:35:57,648 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2021-08-27 14:35:57,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:35:57,648 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 14:35:57,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:35:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:35:57,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 14:35:57,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:35:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:35:57,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 14:35:57,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:35:57,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:35:57,843 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-08-27 14:35:57,844 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:35:57,897 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 60 transitions. Complement of second has 5 states. [2021-08-27 14:35:57,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 14:35:57,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:35:57,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2021-08-27 14:35:57,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 3 letters. [2021-08-27 14:35:57,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:35:57,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 18 letters. Loop has 3 letters. [2021-08-27 14:35:57,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:35:57,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 6 letters. [2021-08-27 14:35:57,901 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:35:57,901 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 60 transitions. [2021-08-27 14:35:57,902 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:35:57,902 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 0 states and 0 transitions. [2021-08-27 14:35:57,902 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 14:35:57,902 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 14:35:57,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 14:35:57,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:35:57,903 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:35:57,903 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:35:57,903 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:35:57,903 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-08-27 14:35:57,903 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 14:35:57,903 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:35:57,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 14:35:57,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 02:35:57 BoogieIcfgContainer [2021-08-27 14:35:57,908 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 14:35:57,909 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 14:35:57,909 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 14:35:57,909 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 14:35:57,910 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:32:16" (3/4) ... [2021-08-27 14:35:57,912 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 14:35:57,912 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 14:35:57,913 INFO L168 Benchmark]: Toolchain (without parser) took 221966.89 ms. Allocated memory was 62.9 MB in the beginning and 167.8 MB in the end (delta: 104.9 MB). Free memory was 42.6 MB in the beginning and 132.3 MB in the end (delta: -89.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2021-08-27 14:35:57,913 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 62.9 MB. Free memory was 45.4 MB in the beginning and 45.4 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:35:57,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.42 ms. Allocated memory is still 62.9 MB. Free memory was 42.3 MB in the beginning and 39.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 14:35:57,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.64 ms. Allocated memory is still 62.9 MB. Free memory was 39.6 MB in the beginning and 37.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 14:35:57,914 INFO L168 Benchmark]: Boogie Preprocessor took 21.99 ms. Allocated memory is still 62.9 MB. Free memory was 37.6 MB in the beginning and 36.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 14:35:57,914 INFO L168 Benchmark]: RCFGBuilder took 316.13 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 36.2 MB in the beginning and 49.5 MB in the end (delta: -13.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2021-08-27 14:35:57,915 INFO L168 Benchmark]: BuchiAutomizer took 221142.04 ms. Allocated memory was 75.5 MB in the beginning and 167.8 MB in the end (delta: 92.3 MB). Free memory was 49.2 MB in the beginning and 132.3 MB in the end (delta: -83.1 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-08-27 14:35:57,915 INFO L168 Benchmark]: Witness Printer took 3.24 ms. Allocated memory is still 167.8 MB. Free memory is still 132.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:35:57,916 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 62.9 MB. Free memory was 45.4 MB in the beginning and 45.4 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 422.42 ms. Allocated memory is still 62.9 MB. Free memory was 42.3 MB in the beginning and 39.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.64 ms. Allocated memory is still 62.9 MB. Free memory was 39.6 MB in the beginning and 37.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.99 ms. Allocated memory is still 62.9 MB. Free memory was 37.6 MB in the beginning and 36.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 316.13 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 36.2 MB in the beginning and 49.5 MB in the end (delta: -13.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 221142.04 ms. Allocated memory was 75.5 MB in the beginning and 167.8 MB in the end (delta: 92.3 MB). Free memory was 49.2 MB in the beginning and 132.3 MB in the end (delta: -83.1 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.24 ms. Allocated memory is still 167.8 MB. Free memory is still 132.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(length1 * sizeof(char))] + -1 * sc1 and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(length2 * sizeof(char))] + 2 * s and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(length2 * sizeof(char))] + 2 * s and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 13 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 221.1s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 161.1s. Construction of modules took 0.5s. Büchi inclusion checks took 59.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 18.5ms AutomataMinimizationTime, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 28 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 102 SDtfs, 143 SDslu, 120 SDs, 0 SdLazy, 163 SolverSat, 38 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 520.3ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital276 mio100 ax100 hnf100 lsp106 ukn86 mio100 lsp39 div114 bol100 ite100 ukn100 eq180 hnf84 smp93 dnf823 smp24 tf100 neg94 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 0 MotzkinApplications: 8 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! [2021-08-27 14:35:57,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-08-27 14:35:58,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...