./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-dietlibc/strcasecmp.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 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-dietlibc/strcasecmp.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 4b83d1547bf3dd46e9571984e7e0a13f5187eff03a7662628a99d75ecc5b0412 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 01:35:00,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:35:00,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:35:00,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:35:00,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:35:00,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:35:00,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:35:00,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:35:00,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:35:00,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:35:00,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:35:00,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:35:00,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:35:00,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:35:00,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:35:00,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:35:00,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:35:00,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:35:00,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:35:00,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:35:00,304 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:35:00,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:35:00,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:35:00,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:35:00,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:35:00,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:35:00,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:35:00,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:35:00,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:35:00,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:35:00,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:35:00,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:35:00,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:35:00,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:35:00,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:35:00,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:35:00,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:35:00,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:35:00,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:35:00,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:35:00,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:35:00,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:35:00,333 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-22 01:35:00,356 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:35:00,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:35:00,357 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:35:00,357 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:35:00,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:35:00,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:35:00,358 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:35:00,358 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 01:35:00,359 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 01:35:00,359 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 01:35:00,359 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 01:35:00,359 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 01:35:00,360 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 01:35:00,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:35:00,360 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:35:00,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:35:00,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:35:00,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 01:35:00,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 01:35:00,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 01:35:00,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:35:00,361 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 01:35:00,361 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:35:00,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 01:35:00,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:35:00,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:35:00,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:35:00,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:35:00,363 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 01:35:00,363 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b83d1547bf3dd46e9571984e7e0a13f5187eff03a7662628a99d75ecc5b0412 [2022-07-22 01:35:00,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:35:00,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:35:00,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:35:00,646 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:35:00,647 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:35:00,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/strcasecmp.i [2022-07-22 01:35:00,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2730bc1e9/a2742c1ef7474e91bcc04887529f1aaa/FLAG1a6164983 [2022-07-22 01:35:01,149 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:35:01,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/strcasecmp.i [2022-07-22 01:35:01,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2730bc1e9/a2742c1ef7474e91bcc04887529f1aaa/FLAG1a6164983 [2022-07-22 01:35:01,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2730bc1e9/a2742c1ef7474e91bcc04887529f1aaa [2022-07-22 01:35:01,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:35:01,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:35:01,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:35:01,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:35:01,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:35:01,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:35:01" (1/1) ... [2022-07-22 01:35:01,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ffe0925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:01, skipping insertion in model container [2022-07-22 01:35:01,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:35:01" (1/1) ... [2022-07-22 01:35:01,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:35:01,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:35:01,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:35:01,418 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:35:01,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:35:01,488 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:35:01,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:01 WrapperNode [2022-07-22 01:35:01,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:35:01,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:35:01,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:35:01,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:35:01,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:01" (1/1) ... [2022-07-22 01:35:01,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:01" (1/1) ... [2022-07-22 01:35:01,534 INFO L137 Inliner]: procedures = 114, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85 [2022-07-22 01:35:01,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:35:01,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:35:01,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:35:01,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:35:01,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:01" (1/1) ... [2022-07-22 01:35:01,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:01" (1/1) ... [2022-07-22 01:35:01,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:01" (1/1) ... [2022-07-22 01:35:01,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:01" (1/1) ... [2022-07-22 01:35:01,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:01" (1/1) ... [2022-07-22 01:35:01,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:01" (1/1) ... [2022-07-22 01:35:01,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:01" (1/1) ... [2022-07-22 01:35:01,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:35:01,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:35:01,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:35:01,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:35:01,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:01" (1/1) ... [2022-07-22 01:35:01,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:01,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:01,620 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) [2022-07-22 01:35:01,653 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 [2022-07-22 01:35:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 01:35:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 01:35:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 01:35:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 01:35:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:35:01,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:35:01,764 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:35:01,765 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:35:01,908 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:35:01,913 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:35:01,913 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-22 01:35:01,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:35:01 BoogieIcfgContainer [2022-07-22 01:35:01,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:35:01,915 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 01:35:01,915 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 01:35:01,917 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 01:35:01,917 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:35:01,918 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 01:35:01" (1/3) ... [2022-07-22 01:35:01,918 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13a85abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:35:01, skipping insertion in model container [2022-07-22 01:35:01,918 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:35:01,918 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:35:01" (2/3) ... [2022-07-22 01:35:01,919 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13a85abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:35:01, skipping insertion in model container [2022-07-22 01:35:01,919 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:35:01,919 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:35:01" (3/3) ... [2022-07-22 01:35:01,920 INFO L354 chiAutomizerObserver]: Analyzing ICFG strcasecmp.i [2022-07-22 01:35:01,952 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 01:35:01,952 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 01:35:01,952 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 01:35:01,952 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 01:35:01,952 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 01:35:01,952 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 01:35:01,953 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 01:35:01,953 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 01:35:01,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:01,966 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2022-07-22 01:35:01,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:35:01,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:35:01,976 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-22 01:35:01,976 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:35:01,976 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 01:35:01,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:01,978 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2022-07-22 01:35:01,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:35:01,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:35:01,978 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-22 01:35:01,979 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:35:01,983 INFO L752 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 15#L524true assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 9#L526-3true [2022-07-22 01:35:01,983 INFO L754 eck$LassoCheckResult]: Loop: 9#L526-3true assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet9#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1; 5#L526-2true main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 9#L526-3true [2022-07-22 01:35:01,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:01,987 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-07-22 01:35:01,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:01,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755700116] [2022-07-22 01:35:01,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:01,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:02,049 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:02,064 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:02,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:02,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2022-07-22 01:35:02,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:02,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668844971] [2022-07-22 01:35:02,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:02,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:02,075 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:02,080 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:02,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:02,081 INFO L85 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2022-07-22 01:35:02,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:02,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578724114] [2022-07-22 01:35:02,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:02,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:02,094 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:02,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:02,300 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:35:02,301 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:35:02,301 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:35:02,301 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:35:02,301 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:35:02,301 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:02,301 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:35:02,302 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:35:02,302 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcasecmp.i_Iteration1_Lasso [2022-07-22 01:35:02,302 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:35:02,302 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:35:02,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:02,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:02,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:02,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:02,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:02,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:02,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:02,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:02,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:02,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:02,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:02,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:02,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:02,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:02,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:02,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:02,574 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:35:02,577 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:35:02,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:02,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:02,591 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) [2022-07-22 01:35:02,607 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 [2022-07-22 01:35:02,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:02,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:02,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:02,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:02,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:02,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:02,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:02,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:02,635 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:02,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-22 01:35:02,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:02,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:02,664 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) [2022-07-22 01:35:02,667 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 [2022-07-22 01:35:02,669 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 [2022-07-22 01:35:02,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:02,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:02,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:02,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:02,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:02,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:02,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:02,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:02,703 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 [2022-07-22 01:35:02,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:02,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:02,705 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) [2022-07-22 01:35:02,710 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 [2022-07-22 01:35:02,711 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:02,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:02,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:02,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:02,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:02,733 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:02,744 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:02,767 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:35:02,793 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2022-07-22 01:35:02,794 INFO L444 ModelExtractionUtils]: 10 out of 22 variables were initially zero. Simplification set additionally 9 variables to zero. [2022-07-22 01:35:02,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:02,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:02,796 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) [2022-07-22 01:35:02,797 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 [2022-07-22 01:35:02,798 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:35:02,819 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-22 01:35:02,819 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:35:02,820 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~in_len~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~in_len~0#1 Supporting invariants [] [2022-07-22 01:35:02,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-07-22 01:35:02,855 INFO L293 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2022-07-22 01:35:02,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:02,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:35:02,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:02,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:35:02,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:02,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:35:02,967 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 [2022-07-22 01:35:02,968 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:03,004 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 89 transitions. Complement of second has 7 states. [2022-07-22 01:35:03,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-22 01:35:03,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:03,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2022-07-22 01:35:03,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 3 letters. Loop has 2 letters. [2022-07-22 01:35:03,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:03,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-22 01:35:03,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:03,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 3 letters. Loop has 4 letters. [2022-07-22 01:35:03,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:03,012 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 89 transitions. [2022-07-22 01:35:03,014 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2022-07-22 01:35:03,016 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 18 states and 23 transitions. [2022-07-22 01:35:03,016 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-07-22 01:35:03,017 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-07-22 01:35:03,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2022-07-22 01:35:03,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:35:03,017 INFO L369 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-07-22 01:35:03,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2022-07-22 01:35:03,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-07-22 01:35:03,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:03,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2022-07-22 01:35:03,033 INFO L392 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-07-22 01:35:03,033 INFO L374 stractBuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-07-22 01:35:03,033 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 01:35:03,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2022-07-22 01:35:03,034 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2022-07-22 01:35:03,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:35:03,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:35:03,034 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-22 01:35:03,034 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:35:03,034 INFO L752 eck$LassoCheckResult]: Stem: 142#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 143#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 151#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 148#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 144#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 145#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 137#L534-3 [2022-07-22 01:35:03,035 INFO L754 eck$LassoCheckResult]: Loop: 137#L534-3 assume !!(main_~i~1#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet13#1, main_~out~0#1.base, main_~out~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 139#L534-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 137#L534-3 [2022-07-22 01:35:03,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:03,035 INFO L85 PathProgramCache]: Analyzing trace with hash 889572430, now seen corresponding path program 1 times [2022-07-22 01:35:03,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:03,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736851945] [2022-07-22 01:35:03,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:03,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:03,050 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:03,066 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:03,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:03,068 INFO L85 PathProgramCache]: Analyzing trace with hash 2051, now seen corresponding path program 1 times [2022-07-22 01:35:03,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:03,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268606869] [2022-07-22 01:35:03,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:03,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:03,090 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:03,096 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:03,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:03,097 INFO L85 PathProgramCache]: Analyzing trace with hash 180614416, now seen corresponding path program 1 times [2022-07-22 01:35:03,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:03,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803777833] [2022-07-22 01:35:03,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:03,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:03,122 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:03,137 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:03,344 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 [2022-07-22 01:35:03,479 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:35:03,479 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:35:03,479 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:35:03,479 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:35:03,479 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:35:03,479 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:03,479 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:35:03,479 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:35:03,480 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcasecmp.i_Iteration2_Lasso [2022-07-22 01:35:03,480 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:35:03,480 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:35:03,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:03,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:03,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:03,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:03,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:03,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:03,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:03,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:03,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:03,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:03,882 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:35:03,882 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:35:03,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:03,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:03,884 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) [2022-07-22 01:35:03,895 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 [2022-07-22 01:35:03,896 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:03,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:03,903 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:03,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:03,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:03,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:03,903 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:03,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:03,911 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:03,928 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 [2022-07-22 01:35:03,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:03,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:03,930 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) [2022-07-22 01:35:03,931 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 [2022-07-22 01:35:03,932 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:03,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:03,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:03,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:03,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:03,940 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:03,940 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:03,956 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:03,974 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 [2022-07-22 01:35:03,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:03,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:04,008 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) [2022-07-22 01:35:04,009 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 [2022-07-22 01:35:04,010 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:04,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:04,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:04,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:04,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:04,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:04,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:04,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:04,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:04,046 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 [2022-07-22 01:35:04,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:04,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:04,048 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) [2022-07-22 01:35:04,049 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 [2022-07-22 01:35:04,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:04,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:04,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:04,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:04,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:04,060 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:04,060 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:04,069 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:04,094 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 [2022-07-22 01:35:04,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:04,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:04,100 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) [2022-07-22 01:35:04,101 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 [2022-07-22 01:35:04,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:04,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:04,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:04,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:04,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:04,110 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:04,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:04,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:04,150 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 [2022-07-22 01:35:04,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:04,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:04,158 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) [2022-07-22 01:35:04,164 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:04,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:04,170 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:04,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:04,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:04,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:04,171 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:04,171 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:04,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:04,185 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 [2022-07-22 01:35:04,191 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 [2022-07-22 01:35:04,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:04,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:04,193 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) [2022-07-22 01:35:04,194 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 [2022-07-22 01:35:04,195 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:04,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:04,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:04,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:04,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:04,211 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:04,212 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:04,231 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:35:04,251 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2022-07-22 01:35:04,251 INFO L444 ModelExtractionUtils]: 19 out of 37 variables were initially zero. Simplification set additionally 12 variables to zero. [2022-07-22 01:35:04,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:04,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:04,258 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) [2022-07-22 01:35:04,270 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:35:04,278 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 [2022-07-22 01:35:04,286 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-07-22 01:35:04,286 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:35:04,286 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1) = -2*ULTIMATE.start_main_~i~1#1 + 1 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_main_~out~0#1.base)_1 + 1*ULTIMATE.start_main_~out~0#1.offset + 1 >= 0] [2022-07-22 01:35:04,320 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 [2022-07-22 01:35:04,336 INFO L293 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2022-07-22 01:35:04,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:04,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 01:35:04,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:04,424 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 [2022-07-22 01:35:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:04,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:35:04,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:04,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:35:04,481 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2022-07-22 01:35:04,481 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:04,561 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 59 transitions. Complement of second has 10 states. [2022-07-22 01:35:04,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 2 non-accepting loop states 2 accepting loop states [2022-07-22 01:35:04,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:04,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 26 transitions. [2022-07-22 01:35:04,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 26 transitions. Stem has 6 letters. Loop has 2 letters. [2022-07-22 01:35:04,569 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:04,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 26 transitions. Stem has 8 letters. Loop has 2 letters. [2022-07-22 01:35:04,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:04,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 26 transitions. Stem has 6 letters. Loop has 4 letters. [2022-07-22 01:35:04,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:04,571 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 59 transitions. [2022-07-22 01:35:04,572 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 16 [2022-07-22 01:35:04,574 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 35 states and 45 transitions. [2022-07-22 01:35:04,575 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2022-07-22 01:35:04,575 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2022-07-22 01:35:04,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 45 transitions. [2022-07-22 01:35:04,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:35:04,580 INFO L369 hiAutomatonCegarLoop]: Abstraction has 35 states and 45 transitions. [2022-07-22 01:35:04,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 45 transitions. [2022-07-22 01:35:04,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 23. [2022-07-22 01:35:04,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 22 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) [2022-07-22 01:35:04,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2022-07-22 01:35:04,583 INFO L392 hiAutomatonCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-07-22 01:35:04,583 INFO L374 stractBuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-07-22 01:35:04,583 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 01:35:04,583 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2022-07-22 01:35:04,584 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2022-07-22 01:35:04,584 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:35:04,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:35:04,586 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:35:04,586 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:35:04,586 INFO L752 eck$LassoCheckResult]: Stem: 303#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 304#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 313#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 309#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 310#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 318#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 317#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 297#L534-4 call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcasecmp } true;strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset, strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcasecmp_#res#1;havoc strcasecmp_#t~mem2#1, strcasecmp_#t~mem3#1, strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset, strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset, strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, strcasecmp_~x2~0#1, strcasecmp_~x1~0#1;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset;havoc strcasecmp_~x2~0#1;havoc strcasecmp_~x1~0#1; 314#L511-2 [2022-07-22 01:35:04,586 INFO L754 eck$LassoCheckResult]: Loop: 314#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 315#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 307#L512-2 call strcasecmp_#t~mem3#1 := read~int(strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, 1);strcasecmp_~x1~0#1 := strcasecmp_#t~mem3#1 - 65;havoc strcasecmp_#t~mem3#1; 308#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 316#L513-2 strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset := strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#t~post4#1.base, 1 + strcasecmp_#t~post4#1.offset;havoc strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset;strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset := strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#t~post5#1.base, 1 + strcasecmp_#t~post5#1.offset;havoc strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset; 311#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 312#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 314#L511-2 [2022-07-22 01:35:04,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:04,587 INFO L85 PathProgramCache]: Analyzing trace with hash 180614358, now seen corresponding path program 1 times [2022-07-22 01:35:04,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:04,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575334515] [2022-07-22 01:35:04,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:04,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:04,606 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:04,640 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:04,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:04,642 INFO L85 PathProgramCache]: Analyzing trace with hash -471896131, now seen corresponding path program 1 times [2022-07-22 01:35:04,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:04,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794812721] [2022-07-22 01:35:04,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:04,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:04,665 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:04,689 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:04,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:04,691 INFO L85 PathProgramCache]: Analyzing trace with hash -723824312, now seen corresponding path program 1 times [2022-07-22 01:35:04,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:04,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355786728] [2022-07-22 01:35:04,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:04,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:04,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:35:04,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:35:04,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355786728] [2022-07-22 01:35:04,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355786728] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:35:04,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:35:04,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 01:35:04,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077931816] [2022-07-22 01:35:04,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:35:05,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:35:05,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 01:35:05,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 01:35:05,005 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:05,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:35:05,085 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2022-07-22 01:35:05,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 01:35:05,087 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 53 transitions. [2022-07-22 01:35:05,090 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 16 [2022-07-22 01:35:05,091 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 42 states and 53 transitions. [2022-07-22 01:35:05,091 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2022-07-22 01:35:05,092 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2022-07-22 01:35:05,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 53 transitions. [2022-07-22 01:35:05,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:35:05,092 INFO L369 hiAutomatonCegarLoop]: Abstraction has 42 states and 53 transitions. [2022-07-22 01:35:05,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 53 transitions. [2022-07-22 01:35:05,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 27. [2022-07-22 01:35:05,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 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) [2022-07-22 01:35:05,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2022-07-22 01:35:05,096 INFO L392 hiAutomatonCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-07-22 01:35:05,097 INFO L374 stractBuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-07-22 01:35:05,097 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-22 01:35:05,097 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2022-07-22 01:35:05,099 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2022-07-22 01:35:05,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:35:05,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:35:05,100 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:35:05,100 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:35:05,100 INFO L752 eck$LassoCheckResult]: Stem: 385#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 386#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 393#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 391#L526-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet9#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1; 383#L526-2 main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 384#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 387#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 388#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 403#L534-3 assume !!(main_~i~1#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet13#1, main_~out~0#1.base, main_~out~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 397#L534-2 [2022-07-22 01:35:05,100 INFO L754 eck$LassoCheckResult]: Loop: 397#L534-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 398#L534-3 assume !!(main_~i~1#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet13#1, main_~out~0#1.base, main_~out~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 397#L534-2 [2022-07-22 01:35:05,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:05,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1357243766, now seen corresponding path program 1 times [2022-07-22 01:35:05,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:05,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44076127] [2022-07-22 01:35:05,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:05,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:05,132 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:05,153 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:05,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:05,153 INFO L85 PathProgramCache]: Analyzing trace with hash 2111, now seen corresponding path program 2 times [2022-07-22 01:35:05,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:05,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591724050] [2022-07-22 01:35:05,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:05,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:05,157 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:05,158 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:05,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:05,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1358797708, now seen corresponding path program 1 times [2022-07-22 01:35:05,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:05,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753976635] [2022-07-22 01:35:05,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:05,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:05,197 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:05,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:05,564 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:35:05,564 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:35:05,564 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:35:05,564 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:35:05,564 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:35:05,564 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:05,564 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:35:05,564 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:35:05,564 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcasecmp.i_Iteration4_Lasso [2022-07-22 01:35:05,564 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:35:05,564 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:35:05,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:05,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:05,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:05,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:05,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:05,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:05,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:05,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:05,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:05,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:05,985 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:35:05,985 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:35:05,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:05,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:05,989 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) [2022-07-22 01:35:05,994 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 [2022-07-22 01:35:05,994 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:06,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:06,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:06,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:06,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:06,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:06,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:06,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:06,014 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:06,032 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 [2022-07-22 01:35:06,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:06,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:06,033 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) [2022-07-22 01:35:06,034 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 [2022-07-22 01:35:06,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:06,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:06,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:06,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:06,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:06,043 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:06,043 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:06,063 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:06,081 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 [2022-07-22 01:35:06,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:06,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:06,082 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) [2022-07-22 01:35:06,090 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:06,095 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 [2022-07-22 01:35:06,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:06,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:06,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:06,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:06,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:06,096 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:06,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:06,111 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:06,129 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 [2022-07-22 01:35:06,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:06,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:06,130 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) [2022-07-22 01:35:06,131 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 [2022-07-22 01:35:06,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:06,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:06,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:06,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:06,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:06,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:06,139 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:06,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:06,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:06,168 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 [2022-07-22 01:35:06,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:06,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:06,170 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:35:06,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-22 01:35:06,175 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:06,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:06,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:06,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:06,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:06,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:06,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:06,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:06,182 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:06,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-07-22 01:35:06,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:06,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:06,207 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) [2022-07-22 01:35:06,207 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 [2022-07-22 01:35:06,208 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:06,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:06,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:06,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:06,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:06,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:06,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:06,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:06,217 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:06,236 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 [2022-07-22 01:35:06,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:06,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:06,238 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) [2022-07-22 01:35:06,241 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 [2022-07-22 01:35:06,242 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 [2022-07-22 01:35:06,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:06,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:06,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:06,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:06,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:06,249 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:06,249 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:06,250 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:06,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2022-07-22 01:35:06,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:06,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:06,275 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) [2022-07-22 01:35:06,278 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 [2022-07-22 01:35:06,279 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:06,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:06,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:06,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:06,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:06,286 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:06,286 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:06,288 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:06,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-07-22 01:35:06,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:06,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:06,305 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) [2022-07-22 01:35:06,306 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 [2022-07-22 01:35:06,306 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:06,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:06,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:06,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:06,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:06,317 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:06,317 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:06,321 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:06,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-07-22 01:35:06,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:06,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:06,337 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) [2022-07-22 01:35:06,338 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 [2022-07-22 01:35:06,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:06,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:06,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:06,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:06,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:06,351 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:06,351 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:06,364 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:06,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-07-22 01:35:06,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:06,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:06,388 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) [2022-07-22 01:35:06,388 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 [2022-07-22 01:35:06,389 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:06,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:06,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:06,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:06,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:06,397 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:06,398 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:06,400 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:06,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-07-22 01:35:06,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:06,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:06,422 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) [2022-07-22 01:35:06,423 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 [2022-07-22 01:35:06,424 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:06,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:06,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:06,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:06,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:06,433 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:06,433 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:06,435 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:06,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-07-22 01:35:06,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:06,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:06,454 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) [2022-07-22 01:35:06,455 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 [2022-07-22 01:35:06,456 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:06,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:06,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:06,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:06,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:06,465 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:06,465 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:06,468 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:06,485 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 [2022-07-22 01:35:06,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:06,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:06,486 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) [2022-07-22 01:35:06,487 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 [2022-07-22 01:35:06,488 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:06,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:06,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:06,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:06,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:06,507 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:06,507 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:06,509 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:06,539 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 [2022-07-22 01:35:06,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:06,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:06,540 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) [2022-07-22 01:35:06,543 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:06,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:06,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:06,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:06,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:06,556 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:06,556 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:06,559 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 [2022-07-22 01:35:06,579 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:06,609 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 [2022-07-22 01:35:06,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:06,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:06,612 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) [2022-07-22 01:35:06,613 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 [2022-07-22 01:35:06,614 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:06,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:06,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:06,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:06,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:06,626 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:06,626 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:06,647 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:35:06,661 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2022-07-22 01:35:06,661 INFO L444 ModelExtractionUtils]: 13 out of 40 variables were initially zero. Simplification set additionally 23 variables to zero. [2022-07-22 01:35:06,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:06,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:06,673 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) [2022-07-22 01:35:06,711 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 [2022-07-22 01:35:06,711 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:35:06,718 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-22 01:35:06,718 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:35:06,718 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~out~0#1.offset, v_rep(select #length ULTIMATE.start_main_~out~0#1.base)_2, ULTIMATE.start_main_~i~1#1) = -1*ULTIMATE.start_main_~out~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_~out~0#1.base)_2 - 1*ULTIMATE.start_main_~i~1#1 Supporting invariants [] [2022-07-22 01:35:06,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-07-22 01:35:06,759 INFO L293 tatePredicateManager]: 10 out of 10 supporting invariants were superfluous and have been removed [2022-07-22 01:35:06,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:06,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:35:06,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:06,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:35:06,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:06,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:35:06,796 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 [2022-07-22 01:35:06,796 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:06,812 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 61 transitions. Complement of second has 4 states. [2022-07-22 01:35:06,812 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 [2022-07-22 01:35:06,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:06,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2022-07-22 01:35:06,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 2 letters. [2022-07-22 01:35:06,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:06,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 11 letters. Loop has 2 letters. [2022-07-22 01:35:06,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:06,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 4 letters. [2022-07-22 01:35:06,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:06,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 61 transitions. [2022-07-22 01:35:06,827 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2022-07-22 01:35:06,827 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 37 states and 48 transitions. [2022-07-22 01:35:06,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2022-07-22 01:35:06,827 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2022-07-22 01:35:06,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 48 transitions. [2022-07-22 01:35:06,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:35:06,827 INFO L369 hiAutomatonCegarLoop]: Abstraction has 37 states and 48 transitions. [2022-07-22 01:35:06,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 48 transitions. [2022-07-22 01:35:06,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2022-07-22 01:35:06,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 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) [2022-07-22 01:35:06,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2022-07-22 01:35:06,843 INFO L392 hiAutomatonCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-07-22 01:35:06,843 INFO L374 stractBuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-07-22 01:35:06,844 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-22 01:35:06,844 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2022-07-22 01:35:06,844 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-22 01:35:06,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:35:06,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:35:06,844 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:35:06,845 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:35:06,845 INFO L752 eck$LassoCheckResult]: Stem: 550#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 551#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 560#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 556#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 552#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 553#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 561#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 568#L534-4 call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcasecmp } true;strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset, strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcasecmp_#res#1;havoc strcasecmp_#t~mem2#1, strcasecmp_#t~mem3#1, strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset, strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset, strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, strcasecmp_~x2~0#1, strcasecmp_~x1~0#1;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset;havoc strcasecmp_~x2~0#1;havoc strcasecmp_~x1~0#1; 570#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 566#L512 assume !(strcasecmp_~x2~0#1 % 4294967296 < 26); 554#L512-2 [2022-07-22 01:35:06,845 INFO L754 eck$LassoCheckResult]: Loop: 554#L512-2 call strcasecmp_#t~mem3#1 := read~int(strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, 1);strcasecmp_~x1~0#1 := strcasecmp_#t~mem3#1 - 65;havoc strcasecmp_#t~mem3#1; 555#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 565#L513-2 strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset := strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#t~post4#1.base, 1 + strcasecmp_#t~post4#1.offset;havoc strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset;strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset := strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#t~post5#1.base, 1 + strcasecmp_#t~post5#1.offset;havoc strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset; 558#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 559#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 563#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 564#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 554#L512-2 [2022-07-22 01:35:06,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:06,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1771707771, now seen corresponding path program 1 times [2022-07-22 01:35:06,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:06,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970639873] [2022-07-22 01:35:06,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:06,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:06,854 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:06,861 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:06,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:06,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1652808163, now seen corresponding path program 2 times [2022-07-22 01:35:06,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:06,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856560350] [2022-07-22 01:35:06,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:06,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:06,866 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:06,869 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:06,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:06,870 INFO L85 PathProgramCache]: Analyzing trace with hash -619806935, now seen corresponding path program 1 times [2022-07-22 01:35:06,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:06,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038871408] [2022-07-22 01:35:06,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:06,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:06,888 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 [2022-07-22 01:35:06,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:35:06,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:35:06,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038871408] [2022-07-22 01:35:06,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038871408] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:35:06,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12616386] [2022-07-22 01:35:06,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:06,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:35:06,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:06,912 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:35:06,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-07-22 01:35:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:06,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-22 01:35:06,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:06,984 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-22 01:35:07,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:35:07,032 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:35:07,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12616386] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:35:07,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 01:35:07,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 12 [2022-07-22 01:35:07,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053033335] [2022-07-22 01:35:07,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:35:07,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:35:07,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 01:35:07,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-22 01:35:07,173 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. cyclomatic complexity: 11 Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:07,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:35:07,238 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2022-07-22 01:35:07,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 01:35:07,239 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 53 transitions. [2022-07-22 01:35:07,239 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-22 01:35:07,240 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 25 states and 31 transitions. [2022-07-22 01:35:07,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-07-22 01:35:07,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-07-22 01:35:07,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 31 transitions. [2022-07-22 01:35:07,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:35:07,240 INFO L369 hiAutomatonCegarLoop]: Abstraction has 25 states and 31 transitions. [2022-07-22 01:35:07,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 31 transitions. [2022-07-22 01:35:07,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-07-22 01:35:07,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.25) internal successors, (30), 23 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) [2022-07-22 01:35:07,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2022-07-22 01:35:07,241 INFO L392 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions. [2022-07-22 01:35:07,241 INFO L374 stractBuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2022-07-22 01:35:07,241 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-22 01:35:07,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 30 transitions. [2022-07-22 01:35:07,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-22 01:35:07,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:35:07,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:35:07,242 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:35:07,242 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:35:07,242 INFO L752 eck$LassoCheckResult]: Stem: 697#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 698#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 704#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 701#L526-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet9#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1; 693#L526-2 main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 694#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 695#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 696#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 705#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 710#L534-4 call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcasecmp } true;strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset, strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcasecmp_#res#1;havoc strcasecmp_#t~mem2#1, strcasecmp_#t~mem3#1, strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset, strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset, strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, strcasecmp_~x2~0#1, strcasecmp_~x1~0#1;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset;havoc strcasecmp_~x2~0#1;havoc strcasecmp_~x1~0#1; 707#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 708#L512 assume !(strcasecmp_~x2~0#1 % 4294967296 < 26); 699#L512-2 [2022-07-22 01:35:07,242 INFO L754 eck$LassoCheckResult]: Loop: 699#L512-2 call strcasecmp_#t~mem3#1 := read~int(strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, 1);strcasecmp_~x1~0#1 := strcasecmp_#t~mem3#1 - 65;havoc strcasecmp_#t~mem3#1; 700#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 709#L513-2 strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset := strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#t~post4#1.base, 1 + strcasecmp_#t~post4#1.offset;havoc strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset;strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset := strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#t~post5#1.base, 1 + strcasecmp_#t~post5#1.offset;havoc strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset; 702#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 703#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 711#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 712#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 699#L512-2 [2022-07-22 01:35:07,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:07,242 INFO L85 PathProgramCache]: Analyzing trace with hash 826888793, now seen corresponding path program 1 times [2022-07-22 01:35:07,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:07,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821585728] [2022-07-22 01:35:07,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:07,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:07,250 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:07,256 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:07,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:07,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1652808163, now seen corresponding path program 3 times [2022-07-22 01:35:07,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:07,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136388861] [2022-07-22 01:35:07,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:07,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:07,261 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:07,280 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:07,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:07,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1293831029, now seen corresponding path program 1 times [2022-07-22 01:35:07,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:07,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027916808] [2022-07-22 01:35:07,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:07,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:07,346 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 01:35:07,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:35:07,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027916808] [2022-07-22 01:35:07,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027916808] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:35:07,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:35:07,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 01:35:07,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298089947] [2022-07-22 01:35:07,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:35:07,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:35:07,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 01:35:07,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 01:35:07,480 INFO L87 Difference]: Start difference. First operand 24 states and 30 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:07,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:35:07,566 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2022-07-22 01:35:07,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 01:35:07,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 47 transitions. [2022-07-22 01:35:07,567 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2022-07-22 01:35:07,567 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 37 states and 45 transitions. [2022-07-22 01:35:07,567 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2022-07-22 01:35:07,567 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2022-07-22 01:35:07,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 45 transitions. [2022-07-22 01:35:07,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:35:07,568 INFO L369 hiAutomatonCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-07-22 01:35:07,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 45 transitions. [2022-07-22 01:35:07,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2022-07-22 01:35:07,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 25 states have internal predecessors, (32), 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) [2022-07-22 01:35:07,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2022-07-22 01:35:07,569 INFO L392 hiAutomatonCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-07-22 01:35:07,569 INFO L374 stractBuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-07-22 01:35:07,569 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-22 01:35:07,569 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 32 transitions. [2022-07-22 01:35:07,569 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-22 01:35:07,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:35:07,569 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:35:07,570 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:35:07,570 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:35:07,570 INFO L752 eck$LassoCheckResult]: Stem: 782#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 783#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 791#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 788#L526-3 assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet9#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1; 780#L526-2 main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 781#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 784#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 785#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 792#L534-3 assume !!(main_~i~1#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet13#1, main_~out~0#1.base, main_~out~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 793#L534-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 776#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 777#L534-4 call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcasecmp } true;strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset, strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcasecmp_#res#1;havoc strcasecmp_#t~mem2#1, strcasecmp_#t~mem3#1, strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset, strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset, strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, strcasecmp_~x2~0#1, strcasecmp_~x1~0#1;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#in~s1#1.base, strcasecmp_#in~s1#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#in~s2#1.base, strcasecmp_#in~s2#1.offset;havoc strcasecmp_~x2~0#1;havoc strcasecmp_~x1~0#1; 794#L511-2 [2022-07-22 01:35:07,570 INFO L754 eck$LassoCheckResult]: Loop: 794#L511-2 assume !false;call strcasecmp_#t~mem2#1 := read~int(strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset, 1);strcasecmp_~x2~0#1 := strcasecmp_#t~mem2#1 - 65;havoc strcasecmp_#t~mem2#1; 795#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 797#L512-2 call strcasecmp_#t~mem3#1 := read~int(strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset, 1);strcasecmp_~x1~0#1 := strcasecmp_#t~mem3#1 - 65;havoc strcasecmp_#t~mem3#1; 799#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 796#L513-2 strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset := strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset;strcasecmp_~s1#1.base, strcasecmp_~s1#1.offset := strcasecmp_#t~post4#1.base, 1 + strcasecmp_#t~post4#1.offset;havoc strcasecmp_#t~post4#1.base, strcasecmp_#t~post4#1.offset;strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset := strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset;strcasecmp_~s2#1.base, strcasecmp_~s2#1.offset := strcasecmp_#t~post5#1.base, 1 + strcasecmp_#t~post5#1.offset;havoc strcasecmp_#t~post5#1.base, strcasecmp_#t~post5#1.offset; 789#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 790#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 794#L511-2 [2022-07-22 01:35:07,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:07,570 INFO L85 PathProgramCache]: Analyzing trace with hash 826943990, now seen corresponding path program 1 times [2022-07-22 01:35:07,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:07,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342929982] [2022-07-22 01:35:07,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:07,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:07,578 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:07,583 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:07,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:07,584 INFO L85 PathProgramCache]: Analyzing trace with hash -471896131, now seen corresponding path program 4 times [2022-07-22 01:35:07,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:07,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966091505] [2022-07-22 01:35:07,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:07,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:07,588 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:07,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:07,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:07,592 INFO L85 PathProgramCache]: Analyzing trace with hash 100997160, now seen corresponding path program 1 times [2022-07-22 01:35:07,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:35:07,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198035126] [2022-07-22 01:35:07,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:35:07,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:35:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:07,602 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:35:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:35:07,620 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:35:08,293 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:35:08,293 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:35:08,293 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:35:08,294 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:35:08,294 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:35:08,294 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:08,294 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:35:08,294 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:35:08,294 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcasecmp.i_Iteration7_Lasso [2022-07-22 01:35:08,294 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:35:08,294 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:35:08,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:08,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:08,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:08,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:08,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:08,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:08,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:08,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:08,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:08,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:08,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:08,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:08,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:08,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:08,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:08,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:08,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:08,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:35:09,410 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:35:09,410 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:35:09,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:09,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:09,411 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) [2022-07-22 01:35:09,419 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 [2022-07-22 01:35:09,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:09,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:09,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:09,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:09,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:09,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:09,426 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:09,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:09,440 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:09,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-07-22 01:35:09,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:09,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:09,457 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2022-07-22 01:35:09,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-07-22 01:35:09,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:09,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:09,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:09,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:09,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:09,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:09,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:09,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:09,481 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:09,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:09,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:09,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:09,497 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2022-07-22 01:35:09,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-07-22 01:35:09,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:09,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:09,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:09,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:09,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:09,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:09,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:09,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:09,523 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:09,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-07-22 01:35:09,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:09,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:09,541 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2022-07-22 01:35:09,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-07-22 01:35:09,544 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:09,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:09,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:35:09,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:09,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:09,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:09,551 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:35:09,551 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:35:09,552 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:09,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2022-07-22 01:35:09,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:09,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:09,578 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2022-07-22 01:35:09,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-07-22 01:35:09,579 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:09,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:09,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:09,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:09,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:09,586 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:09,586 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:09,595 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:09,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2022-07-22 01:35:09,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:09,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:09,614 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2022-07-22 01:35:09,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-07-22 01:35:09,616 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:09,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:09,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:09,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:09,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:09,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:09,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:09,649 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:09,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:09,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:09,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:09,687 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2022-07-22 01:35:09,694 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:09,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:09,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:09,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:09,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:09,703 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:09,703 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:09,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-07-22 01:35:09,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:09,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:09,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:09,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:09,736 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2022-07-22 01:35:09,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-07-22 01:35:09,738 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:09,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:09,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:09,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:09,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:09,745 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:09,745 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:09,755 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:09,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:09,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:09,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:09,773 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2022-07-22 01:35:09,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-07-22 01:35:09,774 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:09,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:09,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:09,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:09,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:09,781 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:09,781 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:09,794 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:35:09,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:09,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:09,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:09,810 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2022-07-22 01:35:09,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-07-22 01:35:09,812 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:35:09,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:35:09,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:35:09,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:35:09,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:35:09,843 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:35:09,843 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:35:09,863 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:35:09,887 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2022-07-22 01:35:09,887 INFO L444 ModelExtractionUtils]: 8 out of 55 variables were initially zero. Simplification set additionally 44 variables to zero. [2022-07-22 01:35:09,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:35:09,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:35:09,889 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2022-07-22 01:35:09,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-07-22 01:35:09,890 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:35:09,898 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-22 01:35:09,898 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:35:09,898 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc7#1.base)_4, ULTIMATE.start_strcasecmp_~s2#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc7#1.base)_4 - 1*ULTIMATE.start_strcasecmp_~s2#1.offset Supporting invariants [] [2022-07-22 01:35:09,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2022-07-22 01:35:09,998 INFO L293 tatePredicateManager]: 22 out of 24 supporting invariants were superfluous and have been removed [2022-07-22 01:35:10,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:35:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:10,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-22 01:35:10,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:35:10,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-22 01:35:10,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:35:10,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:35:10,191 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2022-07-22 01:35:10,191 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 32 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:10,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-07-22 01:35:10,213 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 32 transitions. cyclomatic complexity: 9. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 48 transitions. Complement of second has 8 states. [2022-07-22 01:35:10,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-22 01:35:10,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:35:10,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2022-07-22 01:35:10,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 12 letters. Loop has 7 letters. [2022-07-22 01:35:10,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:10,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 19 letters. Loop has 7 letters. [2022-07-22 01:35:10,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:10,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 12 letters. Loop has 14 letters. [2022-07-22 01:35:10,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:35:10,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 48 transitions. [2022-07-22 01:35:10,215 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:35:10,215 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 0 states and 0 transitions. [2022-07-22 01:35:10,215 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 01:35:10,215 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 01:35:10,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 01:35:10,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:35:10,215 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:35:10,215 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:35:10,215 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:35:10,215 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-22 01:35:10,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-22 01:35:10,216 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:35:10,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 01:35:10,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 01:35:10 BoogieIcfgContainer [2022-07-22 01:35:10,220 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 01:35:10,220 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 01:35:10,220 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 01:35:10,220 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 01:35:10,220 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:35:01" (3/4) ... [2022-07-22 01:35:10,222 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 01:35:10,222 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 01:35:10,222 INFO L158 Benchmark]: Toolchain (without parser) took 9043.41ms. Allocated memory was 67.1MB in the beginning and 125.8MB in the end (delta: 58.7MB). Free memory was 46.2MB in the beginning and 87.0MB in the end (delta: -40.8MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2022-07-22 01:35:10,222 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 47.8MB in the end (delta: 37.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:35:10,223 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.03ms. Allocated memory is still 67.1MB. Free memory was 46.0MB in the beginning and 46.9MB in the end (delta: -884.3kB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-07-22 01:35:10,223 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.43ms. Allocated memory is still 67.1MB. Free memory was 46.9MB in the beginning and 44.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:35:10,224 INFO L158 Benchmark]: Boogie Preprocessor took 30.08ms. Allocated memory is still 67.1MB. Free memory was 44.8MB in the beginning and 43.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:35:10,225 INFO L158 Benchmark]: RCFGBuilder took 349.15ms. Allocated memory is still 67.1MB. Free memory was 43.4MB in the beginning and 32.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 01:35:10,225 INFO L158 Benchmark]: BuchiAutomizer took 8304.70ms. Allocated memory was 67.1MB in the beginning and 125.8MB in the end (delta: 58.7MB). Free memory was 32.0MB in the beginning and 87.0MB in the end (delta: -55.0MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2022-07-22 01:35:10,225 INFO L158 Benchmark]: Witness Printer took 1.90ms. Allocated memory is still 125.8MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:35:10,226 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 67.1MB. Free memory was 47.8MB in the beginning and 47.8MB in the end (delta: 37.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.03ms. Allocated memory is still 67.1MB. Free memory was 46.0MB in the beginning and 46.9MB in the end (delta: -884.3kB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.43ms. Allocated memory is still 67.1MB. Free memory was 46.9MB in the beginning and 44.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.08ms. Allocated memory is still 67.1MB. Free memory was 44.8MB in the beginning and 43.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 349.15ms. Allocated memory is still 67.1MB. Free memory was 43.4MB in the beginning and 32.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 8304.70ms. Allocated memory was 67.1MB in the beginning and 125.8MB in the end (delta: 58.7MB). Free memory was 32.0MB in the beginning and 87.0MB in the end (delta: -55.0MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Witness Printer took 1.90ms. Allocated memory is still 125.8MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (3 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + in_len and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 1 and consists of 7 locations. One deterministic module has affine ranking function -1 * out + unknown-#length-unknown[out] + -1 * i and consists of 3 locations. One deterministic module has affine ranking function -1 * s2 + unknown-#length-unknown[__builtin_alloca (in_len)] and consists of 6 locations. 3 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.2s and 8 iterations. TraceHistogramMax:1. Analysis of lassos took 7.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 49 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 264 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 262 mSDsluCounter, 355 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 239 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 212 IncrementalHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 116 mSDtfsCounter, 212 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU0 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital170 mio100 ax100 hnf100 lsp95 ukn85 mio100 lsp56 div105 bol100 ite100 ukn100 eq170 hnf90 smp96 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 115ms VariablesStem: 6 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 01:35:10,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-07-22 01:35:10,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE